P

HP Systems and Design is the technological leader in the specialty of providing the solution to
setting piping, equipment and walkways on any surface or roof system. With over 15 years spent on
design, research, development and testing, the PHP Systems offer height adjustability, easy installation,
increased load distribution, flexibility and on-site technical support. To date, this is the only system that does
not violate the roofing manufacturer’s warranty. Whether for new installations, modifications or retrofit, PHP
provides assistance with the engineering and design for all their support systems. PHP will continue to set
new standards with innovative product solutions and superior customer service.

Art Valentz
President
 CORE VALUES
Our primary responsibility is to manage the company soundly, profitably and with
adequate growth to serve the needs of our customers, our employees and our
communities. In accomplishing our business purpose, we are guided by the
following core values:

SATISFACTION
is the ultimate focus of all our business activities.

INNOVATION
is our way of life. Change is valued for the competitive opportunities it presents.

INTEGRITY
is never compromised.

QUALITY
in product, services and all of our business transactions is our first priority.

SERVICE
for us is all about our commitment to the customer, before, during and after the sale.
Our first order of business is keeping the customer happy, giving the customer value
for their dollar and making sure they’re pleased after the job is complete.

2
 TABLE OF CONTENTS
President’s Statement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Core Values. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Product Contents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Pipe Support Systems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Super Sleeper (SS-8-R, SS-8-C). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Super Sleeper (SS-8-RL, SS-8-CL). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
PP10 with Channel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
PP10 with Roller. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
PP10 with Channel and Hanger. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
PS-1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
PSE-2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
PSE-Custom. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
PPH-D. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
RTU-20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Optional Accessories for PS and PSE Custom Supports. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Round Base Support Systems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
PPH-RB15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
PPH-RB18 with Roller. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
PPH-RB18 with Swivel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
PPH-RB18 with Leveling Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
PPH-RB18 with Platform Support System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Attachment Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Evaluation and Testing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Telescoping Channel Systems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Component Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Connection Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Beam Loading Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Walkway Systems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Standard System Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Assembly Instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Walkway Systems Support Pressure Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Crossover & Platform Systems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Crossover System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
Platform System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
General Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
Part 1 - General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Part 2 - Products. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
Part 3 - Execution. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Engineering Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
Index. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
Wind Resistance & Seismic Tables. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
Annual Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Partial Customer List. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
Approval Letter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
Terms and Conditions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119

PHP SYSTEMS AND DESIGN • 800.797.6585 3

 PRODUCT CONTENTS

SS-8-R (Super Sleeper System) SS-8-C (Super Sleeper System)

Height adjustable Height adjustable
page 10 page 10

SS-8-RL (Super Sleeper System) SS-8-CL (Super Sleeper System)

Non-adjustable Non-adjustable
page 12 page 12

PP10 with Channel PP10 with Roller

page 14 page 16

PHP's products and methods relating to their use may be covered by one or more of the following U.S. patents,
pending patent applications or foreign counterparts thereof: 5,217,191, 5,685,508, 2,193,575, 5,829,718, 583,199
2,155,366, 2,313,741, 6,017,005, 1,003,812, 2,188,050, 2,092,370, D,435,430, 6,324,800B1, 92516, USSN,90/005,856
S,N, PCT/US/0042,516, D461,7025S, D,463,250S, 300946, 6,592,093B2

4
 PRODUCT CONTENTS

PP10 with Channel and Hanger Type PS-1-2

page 18 page 20

Type PSE-2-2 Type PSE Custom

page 22 page 24

PHP's products and methods relating to their use may be covered by one or more of the following U.S. patents,
pending patent applications or foreign counterparts thereof: 5,217,191, 5,685,508, 2,193,575, 5,829,718, 583,199
2,155,366, 2,313,741, 6,017,005, 1,003,812, 2,188,050, 2,092,370, D,435,430, 6,324,800B1, 92516, USSN,90/005,856
S,N, PCT/US/0042,516, D461,7025S, D,463,250S, 300946, 6,592,093B2

PHP SYSTEMS AND DESIGN • 800.797.6585 5

 PRODUCT CONTENTS

Center Support
Corner Support

Type PPH-D (Duct/Cable Tray Support) RTU-20 (Equipment Support)

page 26 page 28

RB18 with Roller RB18 with Swivel

page 36 page 38

RB18 with Leveling Assembly

page 40

PHP's products and methods relating to their use may be covered by one or more of the following U.S. patents,
pending patent applications or foreign counterparts thereof: 5,217,191, 5,685,508, 2,193,575, 5,829,718, 583,199
2,155,366, 2,313,741, 6,017,005, 1,003,812, 2,188,050, 2,092,370, D,435,430, 6,324,800B1, 92516, USSN,90/005,856
S,N, PCT/US/0042,516, D461,7025S, D,463,250S, 300946, 6,592,093B2

6
 PRODUCT CONTENTS

Walkway System
page 64

Crossover System
page 76

Platform System
page 78

PHP's products and methods relating to their use may be covered by one or more of the following U.S. patents,
pending patent applications or foreign counterparts thereof: 5,217,191, 5,685,508, 2,193,575, 5,829,718, 583,199
2,155,366, 2,313,741, 6,017,005, 1,003,812, 2,188,050, 2,092,370, D,435,430, 6,324,800B1, 92516, USSN,90/005,856
S,N, PCT/US/0042,516, D461,7025S, D,463,250S, 300946, 6,592,093B2

PHP SYSTEMS AND DESIGN • 800.797.6585 7

 PIPE SUPPORT
SYSTEMS
PIPE SUPPORT SYSTEMS

PHP SYSTEMS AND DESIGN • 800.797.6585 9

PIPE SUPPORT
SYSTEMS

SUPER SLEEPER SYSTEMS

Installation
1. All PHP Systems are pre-assembled (no field assembly).
2. Sweep off loose gravel, if present.
3. Consult manufacturer of existing or new roofing system regarding type of isolation pads
required for their roofing system.
4. After pads are installed, place bases on pads.
5. With all pipe supports in place, start at the beginning of the system and adjust each
channel/roller to achieve a balanced system.

Product Specifications
SS-8-C
Bases: High Density Polypropylene Plastics & other additives for UV protection
Weight: Base with assembly 3 pounds
Dimensions: 8"x 10"x 21⁄2"
Height: Adjustable
HDG or stainless steel threaded rods, nuts and washers
For pipe sizes 1⁄2" thru 21⁄2"

SS-8-R
Bases: High Density Polypropylene Plastics & other additives for UV protection
Weight: Base with assembly 4 pounds
Dimensions: 8"x 10"x 21⁄2"
Height: Adjustable

HDG or stainless steel threaded rods, nuts and washers

For pipe sizes up to 21⁄2"

10
 PIPE SUPPORT
SYSTEMS
SUPER SLEEPER SYSTEMS

SS-8-R
Height adjustable
For pipe sizes up to 2½"

SS-8-C
Height adjustable
For pipe sizes up to 2½"

ORDER ON-LINE
www.portablepipehangers.com

PHP SYSTEMS AND DESIGN • 800.797.6585 11

PIPE SUPPORT
SYSTEMS

SUPER SLEEPER SYSTEMS

Installation
1. All PHP Systems are pre-assembled (no field assembly).
2. Sweep off loose gravel, if present.
3. Consult manufacturer of existing or new roofing system regarding type of isolation pads
required for their roofing system.
4. After pads are installed, place bases on pads.

Product Specifications
SS-8-CL
Bases: High Density Polypropylene Plastics & other additives for UV protection
Weight: Base with assembly 3 pounds
Dimensions: 8"x 10"x 21⁄2"
Height: Non-adjustable 31⁄4" off roof
HDG or stainless steel threaded rods, nuts and washers
For pipe sizes 1⁄2" thru 21⁄2"

SS-8-RL
Bases: High Density Polypropylene Plastics & other additives for UV protection
Weight: Base with assembly 4 pounds
Dimensions: 8"x 10 x 21⁄2"
Height: Non-adjustable 31⁄4" off roof

HDG or stainless steel threaded rods, nuts and washers

For pipe sizes up to 21⁄2"

12
 PIPE SUPPORT
SYSTEMS
SUPER SLEEPER SYSTEMS

SS-8-CL
Non-adjustable
For pipe sizes up to 2½"

SS-8-RL
Non-adjustable
For pipe sizes up to 2½"

ORDER ON-LINE
www.portablepipehangers.com

PHP SYSTEMS AND DESIGN • 800.797.6585 13

PIPE SUPPORT
SYSTEMS

TYPE PP10 WITH CHANNEL

Installation
1. All PHP Systems are pre-assembled (no field assembly).
2. Sweep off loose gravel, if present.
3. Consult manufacturer of existing or new roofing system regarding type of isolation pads
required for their roofing system.
4. After pads are installed, place bases on pads.
5. With all pipe supports in place, start at the beginning of the system and adjust each
channel to achieve a balanced system.

Product Specifications
Bases: High Density Polypropylene Plastics & other additives for UV protection
Weight: Base with assembly 5.5 pounds
Dimensions: 10" x 16" x 3"
Height: Adjustable

HDG or stainless steel threaded rods, nuts and washers

For pipe sizes 1⁄2" thru 31⁄2"

14
 PIPE SUPPORT
SYSTEMS
TYPE PP10 WITH CHANNEL

For 3½" and Smaller Conduit Lines

PHP SYSTEMS AND DESIGN • 800.797.6585 15

PIPE SUPPORT
SYSTEMS

TYPE PP10 WITH ROLLER

Installation
1. All PHP Systems are pre-assembled (no field assembly).
2. Sweep off loose gravel, if present.
3. Consult manufacturer of existing or new roofing system regarding type of isolation pads
required for their roofing system.
4. After pads are installed, place bases on pads.
5. With all pipe supports in place, start at the beginning of the system and adjust each
roller to achieve a balanced system.

Product Specifications
Bases: High Density Polypropylene Plastics & other additives for UV protection
Weight: Base with assembly 6.5 pounds
Dimensions: 10" x 16" x 3"
Height: Adjustable

HDG or Stainless steel threaded rods, nuts and washers

For pipe sizes 1⁄2" thru 31⁄2"

16
 PIPE SUPPORT
SYSTEMS
TYPE PP10 WITH ROLLER

For 3½" and Smaller Gas Lines

PHP SYSTEMS AND DESIGN • 800.797.6585 17

PIPE SUPPORT
SYSTEMS

PP10 WITH Channel and Hanger

Installation
1. All PHP Systems are pre-assembled (no field assembly).
2. Sweep off loose gravel, if present.
3. Consult manufacturer of existing or new roofing system regarding type of isolation pads
required for their roofing system.
4. After pads are installed, place bases on pads.
5. With all pipe supports in place, start at the beginning of the system and adjust each
hanger to achieve a balanced system.

Product Specifications
Bases: High Density Polypropylene Plastics & other additives for UV protection
Weight: Base with assembly 6 pounds
Dimensions: 10" x 16" x 3"
Height: Adjustable

HDG or stainless steel threaded rods, nuts and washers

For pipe sizes 3" and smaller

18
 PIPE SUPPORT
SYSTEMS
PP10 WITH Channel and Hanger

For 3" and Smaller Conduit and Gas Lines

PHP SYSTEMS AND DESIGN • 800.797.6585 19

PIPE SUPPORT
SYSTEMS

TYPE PS-1-2

Installation
1. All PHP Systems are pre-assembled (no field assembly).
2. Sweep off loose gravel, if present.
3. Consult manufacturer of existing or new roofing system regarding type of isolation pads
required for their roofing system.
4. After pads are installed, place bases on pads.
5. Place frames over pipe to be supported, then insert into bases.
6. Secure pipe in hangers and adjust.
7. With all pipe supports in place, start at the beginning of the system and adjust each
hanger to its desired height. This process should be done in stages, raising the pipe
approximately 1⁄2" at a time. When desired height is reached, check each support to
determine if an equal amount of weight is being distributed on each support.

Product Specifications
Bases: High Density Polypropylene Plastics & other additives for UV protection
Weight: Bases, 3 pounds each
Dimensions: 12" x 12" x 3"
Frames: Manufactured from B22TH 15⁄8" channel
Hanger Height: Adjustable

HDG or stainless steel threaded rods, nuts and washers

Hot dipped galvanized roller, clevis or band hangers as specified
For pipe sizes 4" and larger

20
 PIPE SUPPORT
SYSTEMS
TYPE PS-1-2

Optional Accessories
page 30

For 3½" and Larger Pipe Sizes

Including Gas, Electrical and HVAC

PHP SYSTEMS AND DESIGN • 800.797.6585 21

PIPE SUPPORT
SYSTEMS

TYPE PSE-2-2

Installation
1. All PHP Systems are pre-assembled (no field assembly).
2. Sweep off loose gravel, if present.
3. Consult manufacturer of existing or new roofing system regarding type of isolation pads
required for their roofing system.
4. After isolation pads are installed, place bases on pads.
5. Place hanger over pipe to be supported, then insert into bases.
6. Secure pipe in hanger and adjust.
7. With all pipe supports in place, start at the beginning of the system and adjust each
hanger to desired height. This process should be done in stages, raising the pipe
approximately 1⁄2" at a time. When desired height is reached, check each support to
determine if an equal amount of weight is being distributed on each support.
8. The PSE-Custom frames telescope up and down for maximum flexibility.

Product Specifications
Bases: High Density Polypropylene Plastics & other additives for UV protection
Weight: Bases, 7 pounds each
Dimensions: 18" x 18" x 3"
Frames: Manufactured from 15⁄8" B22TH channel and 17⁄8" BTS22TH channel
.125-.250W when telescoped

HDG or stainless steel threaded rods, nuts and washers

Hot dipped galvanized roller, clevis or band hangers as specified
For pipe sizes 31⁄2" and larger (bare or insulated)

22
 PIPE SUPPORT
SYSTEMS
TYPE PSE-2-2

Optional Accessories
page 30

For 3½" and Larger Pipe Sizes Including Gas, Electrical and HVAC
(Bare or Insulated)
Custom support to accommodate all multiple pipe runs.

PHP SYSTEMS AND DESIGN • 800.797.6585 23

PIPE SUPPORT
SYSTEMS

TYPE PSE-CUSTOM

Installation
1. All PHP Systems are pre-assembled (no field assembly).
2. Sweep off loose gravel, if present.
3. Consult manufacturer of existing or new roofing system regarding type of isolation pads
required for their roofing system.
4. After isolation pads are installed, place bases on pads.
5. Place hanger over pipe to be supported and insert into bases.
6. Secure pipe in hanger and adjust.
7. With all pipe supports in place, start at the beginning of the system and adjust each
hanger to desired height. This process should be done in stages, raising the pipe
approximately 1⁄2" at a time. When desired height is reached, check each support to
determine if an equal amount of weight is being distributed on each support.
8. The PSE-Custom frames telescope up and down for maximum flexibility.

Product Specifications
Bases: High Density Polypropylene Plastics & other additives for UV protection
Weight: Bases, 7 pounds each
Dimensions: 18" x 18" x 3"
Frames: Manufactured from 15⁄8" B22TH channel and 17⁄8" BTS22TH channel
.125-.250W when telescoped

HDG or stainless steel threaded rods, nuts and washers

Hot dipped galvanized roller, clevis or band hangers as specified
For pipe sizes 31⁄2" and larger (bare or insulated)

24
 PIPE SUPPORT
SYSTEMS
TYPE PSE-CUSTOM

Optional Accessories
page 30

PSE-4-3
For 3½" and Larger Pipe Sizes Including Gas, Electrical
and HVAC (Bare or Insulated)
Custom support to accommodate all multiple pipe runs. Third leg applicable when
frame width exceeds 48" or deflection is .125" or greater.

PHP SYSTEMS AND DESIGN • 800.797.6585 25

PIPE SUPPORT
SYSTEMS

pph-d

Installation
1. All PHP Systems are pre-assembled (no field assembly).
2. Sweep off loose gravel, if present.
3. Consult manufacturer of existing or new roofing system regarding type of isolation pads
required for their roofing system.
4. Determine spacing of supports.
5. Fully adhere isolation pads to roof system if required.
6. After pads are installed, place bases on pads.
7. Place pre-assembled support into bases and adjust as needed.
Note: Support shall be adjustable to maintain existing elevation and slope.

Product Specifications
Bases: High Density Polypropylene Plastics & other additives for UV protection
Weight: Bases, 7 pounds each
Dimensions: 18" x 18" x 3"
Frames: Manufactured from 15⁄8" B22TH channel and 17⁄8" BTS22TH channel
.125-.250W when telescoped

HDG or stainless steel threaded rods, nuts and washers

26
 PIPE SUPPORT
SYSTEMS
PPH-D

For Duct Sizes 12" x 12" and Larger

Supports for round ducting and cable tray are also available upon request.

PHP SYSTEMS AND DESIGN • 800.797.6585 27

PIPE SUPPORT
SYSTEMS

RTU-20

Installation
1. All PHP Systems are pre-assembled (no field assembly).
2. Sweep off loose gravel, if present.
3. Consult manufacturer of existing or new roofing system regarding type of isolation pads
required for their roofing system.
4. Determine spacing of supports.
5. Fully adhere isolation pads to roof system if required.
6. After pads are installed, place bases on pads.
7. Place pre-assembled support into bases and adjust as needed.
Note: Support shall be adjustable to maintain existing elevation and slope.

Product Specifications
Bases: High Density Polypropylene Plastics & other additives for UV protection
Weight: Bases, 7 pounds each
Dimensions: 18" x 18" x 3"
Frames: Manufactured from 15⁄8" B22TH channel and 17⁄8" BTS22TH channel
.125-.250W when telescoped

HDG or stainless steel threaded rods, nuts and washers

28
 PIPE SUPPORT
SYSTEMS
RTU-20

Rooftop unit supports

to accommodate multiple
equipment applications.

Corner Support

Center Support

PHP SYSTEMS AND DESIGN • 800.797.6585 29

PIPE SUPPORT
SYSTEMS

OPTIONAL ACCESSORIES

Roller Hanger Band Hanger

Roller Hanger for use with Band Hanger for use with
Gas and other bare pipes HVAC and other insulated pipes

Clevis Hanger Accessory Bar

Clevis Hanger for use with Accessory Bar for use with Conduit
HVAC and other insulated pipes or Cable under 2½" in diameter

Pipe Guide J-Clamp

Pipe Guide for use with PP10 & SS8 J-Clamp for 2" and
units with roller assembly smaller conduit line

For PS and PSE Custom Supports

30
 PIPE SUPPORT
SYSTEMS
OPTIONAL ACCESSORIES

Straight Bracing

Straight Bracing for pipes

24" above the roof surface
and higher

K-Bracing

“K” bracing for pipes

24" above the roof surface
and higher

For PS and PSE Custom Supports

PHP SYSTEMS AND DESIGN • 800.797.6585 31

 ROUND BASE SUPPORT
ROUND BASE

SYSTEMS
SUPPORT SYSTEMS

PHP SYSTEMS AND DESIGN • 800.797.6585 33

 PPH-RB15
ROUND BASE SUPPORT
SYSTEMS

Installation
1. All PHP Systems are pre-assembled (no field assembly).
2. Sweep off loose gravel, if present.
3. Consult manufacturer of existing or new roofing system regarding type of isolation pads
required for their roofing system.
4. Determine spacing of supports.
5. Fully adhere isolation pads to roof system if required.
4. After pads are installed, place bases on pads.
5. Attach pre-assembled support to bases and adjust as needed.
Note: Support shall be adjustable to maintain existing elevation and slope.

Product Specifications
Bases: High Density Polypropylene Plastics & other additives for UV protection
Weight: Base weight 2.05 pounds
Dimensions: Base 15" diameter
Height: Adjustable

For attachment method, specification sheets and general inquiry:

Please contact PHP at (800) 797-6585.

34
 PPH-RB15

ROUND BASE SUPPORT

SYSTEMS

Base Designed for Mechanical Attachment and

for Flashing into Roof System

PHP SYSTEMS AND DESIGN • 800.797.6585 35

 PPH-RB18 WITH ROLLER
ROUND BASE SUPPORT
SYSTEMS

Installation
1. All PHP Systems are pre-assembled (no field assembly).
2. Sweep off loose gravel, if present.
3. Consult manufacturer of existing or new roofing system regarding type of isolation pads
required for their roofing system.
4. After pads are installed, place bases on pads.
5. With all pipe supports in place, start at the beginning of the system and adjust each
roller to achieve a balanced system.

Product Specifications
Bases: High Density Polypropylene Plastics & other additives for UV protection
Weight: Base with assembly 12.5 pounds
Dimensions: Base 18" diameter
Height: Adjustable

HDG or stainless steel threaded rods, nuts and washers

For pipe sizes 4" thru 6"

36
 PPH-RB18 WITH ROLLER

ROUND BASE SUPPORT

SYSTEMS

For 4" to 5" Gas Lines

Base can be mechanically fastened if required
(see pages 44-47)

PHP SYSTEMS AND DESIGN • 800.797.6585 37

 PPH-RB18 WITH SWIVEL
ROUND BASE SUPPORT
SYSTEMS

Installation
1. All PHP Systems are pre-assembled (no field assembly).
2. Sweep off loose gravel, if present.
3. Consult manufacturer of existing or new roofing system regarding type of isolation pads
required for their roofing system.
4. Determine spacing of supports.
5. Fully adhere isolation pads to roof system if required.
6. After pads are installed, place bases on pads.
7. Attach pre-assembled support to bases and adjust as needed.
Note: Support shall be adjustable to maintain existing elevation and slope.

Product Specifications
Bases: High Density Polypropylene Plastics & other additives for UV protection
Weight: Base with assembly 10.5 pounds
Dimensions: Base 18" diameter
Swivel: ⁄4" Galvanized Steel
1

HDG or stainless steel threaded rods, nuts and washers

38
 PPH-RB18 WITH SWIVEL

ROUND BASE SUPPORT

SYSTEMS

For Sloped and Tapered Roof Systems

(equal to or exceeding ½" per foot)
Base can be mechanically fastened if required
(see pages 44-47)

PHP SYSTEMS AND DESIGN • 800.797.6585 39

 PPH-RB18 WITH LEVELING ASSEMBLY
ROUND BASE SUPPORT
SYSTEMS

Installation
1. All PHP Systems are pre-assembled (no field assembly).
2. Sweep off loose gravel, if present.
3. Consult manufacturer of existing or new roofing system regarding type of isolation pads
required for their roofing system.
4. After isolation pads are installed, place base assembly on pads.
5. Attach substructure to Leveling Assembly. Place substructure with Leveling
Assembly on pads.
6. Loosen lock nuts, then adjust Leveling Assembly to attain correct height.
7. Tighten lock nuts.

Product Specifications
Bases: High Density Polypropylene Plastics & other additives for
UV protection
Weight: Base with assembly 20 pounds
Dimensions: Base 18" diameter
Leveling Assembly: Swivel 1⁄4" Galvanized Steel

HDG or stainless steel threaded rods, nuts and washers and 1⁄4" steel plate

40
PPH-RB18 WITH LEVELING ASSEMBLY

ROUND BASE SUPPORT

SYSTEMS

For Sloped and Flat Roof Systems

Base can be mechanically fastened if required
(see pages 44-47)

PHP SYSTEMS AND DESIGN • 800.797.6585 41

 PPH-RB18 WITH PLATFORM SUPPORT SYSTEM
ROUND BASE SUPPORT
SYSTEMS

Installation
1. All PHP Systems are pre-assembled (no field assembly).
2. Sweep off loose gravel, if present.
3. Consult manufacturer of existing or new roofing system regarding type of isolation pads
required for their roofing system.
4. Determine spacing of supports.
5. Fully adhere isolation pads to roof system if required.
6. After pads are installed, place bases on pads.
7. Attach pre-assembled support to bases and adjust as needed.
Note: Support shall be adjustable to maintain existing elevation and slope.
8. Lay out bar grating on substructures and attach.

Product Specifications
Bases: High Density Polypropylene Plastics & other additives for UV protection
Weight: Base with assembly 10.5 pounds
Dimensions: Base 18" diameter
Swivel: 1
⁄4" Galvanized Steel

HDG or stainless steel threaded rods, nuts and washers and 1⁄4" steel plate
Bar Grating: Per customer specification

42
 PPH-RB18 WITH PLATFORM SUPPORT SYSTEM

ROUND BASE SUPPORT

• Seismic Approval to Zone 4 SYSTEMS
• Approved Raw-Land Site Applications
• Adjustable
• Modular Systems

(For mechanically attaching the Platform to a wood, metal or

structural concrete deck see pages 44-47)

PHP SYSTEMS AND DESIGN • 800.797.6585 43

 Procedure for Mechanically Fastening
ROUND BASE SUPPORT

the Round Base System

SYSTEMS

Installation
1. Attach seismic plate with threaded rods to deck using appropriate fasteners for metal
or concrete deck, or hex lag screw for wood deck (fastener must meet ICC standards).
2. Fill area with insulation or lightweight concrete as specified to required thickness.
3. Install roof membrane according to manufacturer’s specifications.
4. Remove protective strip from gasket and place base directly over threaded
rods and press firmly.
5. Hand tighten nuts firmly to base, and mechanically tighten five 36o˚ rotations.
6. Place injection gun into port on each side of base, filling cavity until sealant is visible
at vent.
7. Install exterior bead of sealant at perimeter of base.

*For optional procedures on various rooftop applications call 1.800.797.6585.

44
 Procedure for Mechanically Fastening
the Round Base System

ROUND BASE SUPPORT

SYSTEMS
1 NUT

2 RB18

3 BOLTS

4 3/8" COMPRESSIBLE GASKET

5 20" X 20" FLOOR COVER SHEET

6 INJECTION PORT

7 INSULATION CUT

8 WASHERS

9 ROOF MEMBRANE

10 RIGID INSULATION

12 SEALING MASTIC
(AFTER FASTENING BASE)

13 SEISMIC BASE

15 CONCRETE

16 URETHANE CAULKING

17 INJECTION PORT CAP

RB18 Attached to Concrete, Metal and

Wood Decking From Above

PHP SYSTEMS AND DESIGN • 800.797.6585 45

 Procedure for Mechanically Fastening
ROUND BASE SUPPORT

the Round Base System

SYSTEMS

1 NUT

2 RB18

3 BOLTS

4 3/8" COMPRESSIBLE GASKET

5 20" X 20" FLOOR COVER SHEET

6 INJECTION PORT

7 INSULATION CUT

8 WASHERS

9 ROOF MEMBRANE

10 RIGID INSULATION

11 STEEL DECK

12 SEALING MASTIC
(AFTER FASTENING BASE)

13 ATTACHMENT PLATE

16 URETHANE CAULKING

17 INJECTION PORT CAP

RB18 Attached to Metal or Wood Decking From Below

46
 Procedure for Mechanically Fastening
the Round Base System

ROUND BASE SUPPORT

SYSTEMS
1 NUT

2 RB18

3 BOLTS

4 3/8" COMPRESSIBLE GASKET

5 20" X 20" FLOOR COVER SHEET

6 INJECTION PORT

7 INSULATION CUT

8 WASHERS

9 ROOF MEMBRANE

10 RIGID INSULATION

15 CONCRETE

16 URETHANE CAULKING

17 INJECTION PORT CAP

RB18 Attached To Structural Concrete Decking

PHP SYSTEMS AND DESIGN • 800.797.6585 47

EVALUATION & TESTING
OF EQUIPMENT

EQUIPMENT SUPPORT BASES

EVALUATION & TESTING OF
SUPPORT BASES

PHP SYSTEMS AND DESIGN • 800.797.6585 49

 EVALUATION & TESTING OF
EQUIPMENT SUPPORT BASES

50
EVALUATION & TESTING OF EQUIPMENT SUPPORT BASES

Mr. Art Valentz

PHP Systems and Design

EQUIPMENT SUPPORT BASES

5534 Harvey Wilson Drive

EVALUATION & TESTING OF

Houston, Texas 77020

SUBJECT: EVALUATION AND TESTING OF EQUIPMENT SUPPORT BASES

PHP Systems and Design
Houston, Texas
LAW Project No. 60120-0-2088

Dear Mr. Valentz:

Law Engineering and Environmental Services, Inc. (LAW) is pleased to present this report of the
fastener design and material testing of PHP Systems and Design, (PHP) high-density
polyethylene pipe hanger assembly support bases. Our consulting services were performed
in general accordance with our proposal entitled "Proposal for Limited Structural Engineering
Services" and authorized by Mr. Art Valentz of PHP.

Our report presents a three-phase approach to the design and evaluation of the 18-inch-round
support bases. Calculations for the design of the support base roof fasteners were performed as
Phase One. AutoCAD drawings of the designs for three different roof types, concrete, steel and
wood, were developed. Limited material property testing to evaluate engineering characteristics
of the support bases were completed in Phase Two. This report comprises Phase Three with our
findings and observations from Phases One and Two.

1.0 PROJECT INFORMATION

The typical application for the support bases is to provide the "footings" for roof-mounted pipe rack
frames, typically constructed of galvanized steel frames and hangers. However, other types of
roof-mounted equipment such as conduits and electrical and telecommunications boxes can also be
supported from the bases. The support bases have four holes: two holes for fastening the support
base to the roof system and two holes for connecting the frame to the support base. The support
base is eighteen-inches in diameter and approximately 5⁄8-inch thick, with stiffening ribs distributed
over its top surface. The fastener holes are stiffened and extend approximately 3 inches above the
bottom of the base.

PHP SYSTEMS AND DESIGN • 800.797.6585 51

 evaluation & Testing of equipment support bases

2.0 DESIGN CRITERIA

EQUIPMENT SUPPORT BASES

The calculations performed in our evaluation and design phase determined the maximum
EVALUATION & TESTING OF

gravity load that can be applied to a single support base, when it is subject to seismic lateral
forces. The seismic forces used were determined per Seismic Zone 4 of the 1997 Uniform
Building Code. These are the greatest design loads that will be experienced by the support
bases except for blast-type or tornadic loadings. Due to the offset of the connection of the
typical steel support at the top of the base, an overturning moment is produced in addition
to the lateral shear. This overturning moment along with the gravity load on the base exerts a
compressive force on the roofing and insulation. It is the compressive stress on the insulation
that is the limiting factor for the design of the support bases. When the insulation is
over-stressed, the roofing system may become compromised.

The following are our assumptions for the design of the support bases:

• Eight-foot spacing of pipe support frames

• Supported pipes are filled with water and all pipes are supported at the same
height above the roof surface
• Pipes are braced relative to the support frame
• Pipe support frame is rigid and capable of resisting overturning and lateral forces
• Pipe hangers and attachments are capable of withstanding the required forces
• Seismic design forces are as developed by Section 1630.2 of the 1997 Uniform
Building Code for Seismic Zone 4. F=ZICW; Z=0.4, I=1.0, C=1.5, W=wt.
of equipment
• Allowable bearing compressive stress for the roofing insulation is 5 pounds per
square inch

The design is based on two types of pipe support frames. 1) A pipe supported by a rigid steel
frame supported from two support bases and a minimum support base spacing of 22 inches is
assumed for single pipes, and 2) Pipe supported by a rigid steel frame supported by three
support bases and located 27 inches apart in two bays were assumed for four pipes. For
greater bay widths, only a slight increase in maximum allowable gravity load on a support base
is afforded. Also, for lower heights of the pipes above the roof an increase in allowable gravity
load on a support base is found. All support bases for the two types of pipe support frames are
fastened to the roof structure.

52
EVALUATION & TESTING OF EQUIPMENT SUPPORT BASES

A summary of the design calculations based on the above assumptions is presented as follows:

EQUIPMENT SUPPORT BASES

EVALUATION & TESTING OF
Loads along the length of the supported pipes will vary according to length of the pipes
and how the pipes are connected to the equipment they serve. Bracing of the pipe support
frames for these types of loads must be carefully selected for specific locations as these loads
can become significant at a restrained pipe. We recommend that a design be performed by
a registered professional engineer.

Another application of the support bases is for the support of roof-mounted electrical and
telecommunications equipment. The same anchor connections to the roof system as used
for pipe supports may be used; however, more support bases may be employed, thereby
reducing the gravity load on a per support base basis from that typically found with piping
support loads.

Based on our design assumptions and calculations, determining the number of the support
bases requiring through roof fasteners is accomplished by the following simple procedure:

Divide the equipment's total weight by 382 pounds. Round this number
up to the nearest even number. This is the number of support bases required
to be anchored to the roof structure with the specified fasteners.

The support bases fastened to the roof structure should be symmetrically distributed to the
four corners of the equipment supported and about the equipment's center of gravity.

To limit compressive stresses imparted to the roof insulation, we recommend the tension
force applied to the through-roof fasteners be closely monitored during installation of the
support bases. At the time of this report we are investigating a low-load direct tension
indicator which will assist in maintaining an installed compressive stress on the insulation
of less than 1 psi. As a guideline, the fasteners should be installed only hand-tight.

PHP SYSTEMS AND DESIGN • 800.797.6585 53

 evaluation & testing of equipment support bases

3.0 LABORATORY TESTING

EQUIPMENT SUPPORT BASES

As part of LAW's evaluation of the support bases, we performed material testing of physical
EVALUATION & TESTING OF

properties of the support bases. Two separate tests were performed on actual production
support bases provided by PHP. The first test was a shear test where the shear strength of
a support base with a load applied by a 5⁄8-inch diameter fastener in one of the through-roof
fastener holes was tested. The second test was a pull-out test where the strength of one of
the through-roof fastener holes was tested by pulling a 5⁄8-inch diameter fastener with nut
and washer through the hole. These tests were performed on a Tinius-Olsen Super "L"
Universal Testing Machine in LAW's Houston facility. The tests were performed till failure.
All of the tests were performed with the specimens at a temperature of 73 deg F.
The results of the tests are as follows:

4.0 Conclusions

Details of the connections of the support bases to three different types of roof level structures
are attached. The findings and observations presented in this report were considered for the
design of the connections. The design forces placed on the support base are significantly less
than the maximum loads attained by the support bases during the laboratory testing. Based
on the findings of our calculations and the nature of their exposed condition, stronger stainless
steel fasteners are specified for the connections due to the bending in the fastener from the

54
evaluation & testing of equipment support bases

eccentricity caused by the roof insulation thickness. Any deviation greater than the
specified insulation thickness will result in a larger diameter fastener. For the thin deck

EQUIPMENT SUPPORT BASES

roofs, steel and wood, a toggle-type anchor is specified for blind installation from the top

EVALUATION & TESTING OF

of the roof system. These designs and conclusions herein were based on maximum forces
due to seismic activity and wind events.

Respectfully submitted,

LAW ENGINEERING AND ENVIRONMENTAL SERVICES, INC.

Troy D. Madeley, P.E. Glen Chamblee, AIA

Senior Structural Engineer Principal Architect

PHP SYSTEMS AND DESIGN • 800.797.6585 55

 TELESCOPING
CHANNEL SYSTEMS

CHANNEL SYSTEMS
TELESCOPING

PHP SYSTEMS AND DESIGN • 800.797.6585 57

 COMPONENT DATA

BTS22TH- Telescoping Channel fits over all 15⁄8" x 15⁄8" channels

9
⁄16" holes on 17⁄8" centers
12 gauge material thickness
CHANNEL SYSTEMS
TELESCOPING

Section Properties X-X Axis Y-Y Axis

Channel Weight Area Cx Ix Sx rx Cy Iy Sy ry
lbs/ft In2 In In4 In3 In In In4 In3 In
BTS22TH 1.934 0.4401 1.0090 0.2459 0.2437 0.7475 0.9425 0.2696 0.2860 0.7827

B22TH - Three Hole Channel

9
⁄16" holes on 17⁄8" centers
12 gauge material thickness

Section Properties X-X Axis Y-Y Axis

Channel Weight Area Cx Ix Sx rx Cy Iy Sy ry
lbs/ft In2 In In4 In3 In In In4 In3 In
B22TH 1.663 0.3602 0.8462 0.1582 0.1870 0.6363 0.8125 0.1458 0.1794 0.6627

58
 CONNECTION DATA

Combination of BTS22TH & B22TH

CHANNEL SYSTEMS
Section Properties X-X Axis Y-Y Axis

TELESCOPING
Channel Weight Area Cx Ix Sx rx Cy Iy Sy ry
lbs/ft In2 In In4 In3 In In In4 In3 In
Combination
BTS22TH/B22TH 3.597 0.8003 0.9942 0.3920 0.3943 0.6998 0.9425 0.4278 0.4539 0.7312

Slip Load Data

Resistance to slip Resistance to slip

3600 lbs.* 700 lbs.*

1
⁄4" thick 2-hole
fitting with 21⁄2"
⁄2" bolt &
1 bolts and channel
nut nuts. Typical of many
standard fittings.

*With a safety factor of 3

PHP SYSTEMS AND DESIGN • 800.797.6585 59

 CONNECTION DATA
The flexibility of the telescoping channel system allows many different connection configurations.
Several typical beam loading details are shown below.
CHANNEL SYSTEMS
TELESCOPING

In all of these cases, the 15⁄8" B22TH channel is the limiting factor when determining the ultimate beam
strength. It is our general recommendation that all telescoping beam members be overlapped a minimum of
3 holes (55⁄8") and use two l⁄2" diameter bolts with hex nuts or channel nuts. Overlapping the members more
than three holes results in increased strength and less deflection.
To determine the beam strength of a partially telescoped beam, use the beam loading chart for “B22TH”
for the overall span.

Example:
Determine the allowable loading
of the telescoped beam.

Solution:
Use beam load data for “B22TH.” Allowable load = 615 lbs.

To determine the beam strength of a fully telescoped beam, use the beam loading chart for “BTS22TH &
B22TH” for the overall span.

Example:
Determine the allowable loading
of the beam.
Allowable load = 1449 lbs.
Solution: Use beam load data for
“BTS22TH & B22TH.”

60
 BEAM LOADING DATA
B22TH
Beam Load Data x-x Axis
Beam Allowable Resulting Allowable Load
Span Load Deflection @ Deflection =
(in.) (lbs.)* (in.) 1/240 Span
12 3115 0.015 3115
24 1555 0.059 1555
36 1034 0.133 1034
48 773 0.236 653
60 615 0.369 414
72 509 0.532 283

CHANNEL SYSTEMS
84 434 0.724 204

TELESCOPING
96 376 0.946 151
108 331 1.197 115
120 295 1.478 89

BTS22TH

Beam Load Data x-x Axis
Beam Allowable Resulting Allowable Load
Span Load Deflection @ Deflection =
(in.) (lbs.)* (in.) 1/240 Span
12 3986 0.012 3986
24 1990 0.049 1990
36 1324 0.109 1324
48 989 0.195 989
60 788 0.304 646
72 653 0.438 444
84 556 0.596 321
96 483 0.779 241
108 426 0.985 185
120 379 1.216 145

B22TH & BTS22TH

Telescoping Members of Equal Length
Beam Load Data x-x Axis
Beam Allowable Resulting Allowable Load
Span Load Deflection @ Deflection =
(in.) (lbs.)* (in.) 1/240 Span
12 7331 0.014 7331
24 3660 0.056 3660
36 2434 0.126 2434
48 1819 0.225 1619
60 1449 0.351 1027
72 1200 0.505 704
84 1022 0.688 507
96 887 0.898 379
108 782 1.137 289
120 697 1.403 224
* Based on simple beam condition using an allowable design stress of 25,000 psi (172 MPa) with adequate
material bracing.
* To determine concentrated load capacity at mid-span, multiply uniform load by 0.5 and corresponding
deflection by 0.8.

PHP SYSTEMS AND DESIGN • 800.797.6585 61

WALKWAY SYSTEMS

WALKWAY SYSTEMS

PHP SYSTEMS AND DESIGN • 800.797.6585 63

 WALKWAY SYSTEMS

Standard System Specifications

1. Elevated walkway systems routed across the roof shall be supported off the roof
by an engineered, prefabricated Walkway System, specifically designed to be
installed directly onto the roof without roof penetrations, flashings or damage to
the roofing material.
2. The system shall be designed to support all weight and equipment as required.
3. The system shall consist of the following:
a. Bases are to be made of High Density Polypropylene Plastics and other additives
for UV protection. Material with inserts for channel or threaded rods as required.
b. The substructure is made of a 12 gauge back to back channel G-1012A, and is
supported directly from the bases.
WALKWAY SYSTEMS

c. The grating material is made from mill-galvanized carbon steel.

Metal gauge: 14-ga. steel, 16-ga. steel, 18-ga. steel
Finish: Mill-galvanized before fabrication, ASTM A525
Section Width: 12", 9", 6"
Grating Height: 11⁄2", 21⁄2", 3" and 4"
Standard Lengths: 12', 20', 24' (other lengths to order)
Flange Options: FM, MM, FF
Surface condition: MG – traction grip, MS – smooth
d. The handrail is assembled from a 12 gauge, 15⁄8" channel G-5812.
4. All substructures and handrails shall be galvanized steel. Nuts, threaded rods and
washers shall be electro-plated.
5. Elevated walkway systems shall be manufactured by PHP Systems and Design.

64
 walkway systems

WALKWAY SYSTEMS

Elevated Systems for Built-up, Single-ply, Sloped and

Standing Seam Metal Roofs

PHP SYSTEMS AND DESIGN • 800.797.6585 65

 FOUR-STEP WALKWAY ASSEMBLY

Before Assembly...
1. Determine spacing of substructures.
2. Sweep off loose gravel, if present.
3. Isolation Pads:
a. Must be compatible with existing roof or new roofing system being installed
(check with manufacturer).
b. Not necessary to be adhered to roofing membrane.
4. Alignment of Substructures:
a. Splice Assembly - Used to join one 20' span of planking to another.
b. Straight Assembly - Intermediate support between splices. The quantity will depend
on the weight to be supported and distributed.
c. Corner Assembly - Can be right or left turn.
WALKWAY SYSTEMS

5. Handrails:
a. If handrails are required, the hardware for attaching said handrail will have been
installed at the factory, and the intermediate rail will have been cut to size.
b. For ease of installation, the top handrail will come in 20' lengths.

2 Place bases on
isolation pads
and insert legs
of substructures.

1 Place appropriate
isolation pads in place.

66
FOUR-STEP WALKWAY ASSEMBLY

WALKWAY SYSTEMS
4 Place the handrails on top
of the factory-installed
hardware and secure with
channel nuts and hex
head cap screws.

3
Lay out planking.
Make whatever minor
adjustments are needed
(spacing of substructures
to accommodate the
intermediate handrail, if
required) and install
hold-downs.

PHP SYSTEMS AND DESIGN • 800.797.6585 67

 WALKWAY SYSTEM
SUPPORT PRESSURE
TABLES

WALKWAY SYSTEM SUPPORT

PRESSURE TABLES

PHP SYSTEMS AND DESIGN • 800.797.6585 69

 WALKWAY SYSTEM SUPPORT PRESSURE TABLES

PHP Systems and Design

5534 Harvey Wilson Drive
Houston, Texas 77020

Attention: Mr. Art Valentz

Subject: REPORT OF ENGINEERING SERVICES

Walkway System Support Pressure Tables
Houston, Texas
LAW Project No. 60133-7-3035 Phase 02

Law Engineering and Environmental Services, Inc. (LAW) is pleased to submit this
report of engineering services to develop tables of pressure below walkway system supports
for several typical loading situations. This report was requested by Mr. Art Valentz, and
contains our understanding of the project information, scope of services, our findings, and
the basis of our findings.
WALKWAY SYSTEM SUPPORT

PROJECT INFORMATION
PRESSURE TABLES

PHP Systems and Design (PHP) requested that LAW derive tables of the pressures
under several different walkway systems. These tables are similar to those in LAW’s
November 17, 1995 Report (Project No. 306-08568 01). Tables were requested for walkway
widths of 2, 3, and 4-feet (with no railing systems) subject to various expected loadings, as
described in the Scope of Services section.

SCOPE OF SERVICES

PHP retained LAW to develop tables indicating the pressure applied to the roofing system
by three walkway widths for various load scenarios described below. We did not address the
potential uplift by wind of these systems because these loads would be location specific. Our
understanding of the walkway system types is presented below:

For the 2' wide walkway:

. Supports frames (2' wide) of back-to-back 12-gauge channel type members every 4'
. Both 12" by 12" and 18" by 18" roof pads
. Grate-Lock type grating sections (2.5" tall, 12" wide, 20' long, 18-gauge thickness)

For the 3' wide walkway:

. Supports frames (3' wide) of back-to-back 12 gauge channel type members every 4'
. Both 12" by 12" and 18" by 18" roof pads
. Grate-Lock type grating sections (2.5" tall, 12" wide, 20' long, 18-gauge thickness)

70
walkway system support pressure tables

For the 4' wide walkway:

. Supports frames (4' wide) of back-to-back 12-gauge channel type
members every 4'
. Only the 18" by 18" roof pads

Grate-Lock type grating sections (2.5" tall, 6" wide, 20' long, 14-gauge thickness)

We have provided tables stating the pressure applied to the roof surface through the
base of the supports for each of the above walkways subject to uniformly distributed live
loads of 25, 50, 75, and 100 pounds per square foot (psf), as well as for one and two people
weighing 150, 200, and 250 pounds (lbs). Dead loads due to frame and footing weights
were included as well as catalog published values for the plank weights.

We have also determined the pressures due to a 1,800 to 2,000 pound gravity load
from a garden tractor with trailer assembly on the 4' wide walkway. This loading will be
treated as three 600 pound loads at 5' spacing and as a 400, 600, 1000 pound series (at 5'
spacing). These results are presented in the Findings section below and the following page.
We have not sized the individual support frames or connections.

WALKWAY SYSTEM SUPPORT

PRESSURE TABLES
FINDINGS

For the walkway systems described above, we observed the pressure applied to the roof
surface to be less than 5.0 pounds per square inch (psi). Note that the pressures applied to
the roof have been rounded up to the nearest tenth of a pound (lb), that is 1.01 pounds per
square inch (psi) is shown as 1.1 psi. The full weight of (one or two) people on the planking
has conservatively been assigned to a single footing pad. The tables on the following page
present our findings.

PHP SYSTEMS AND DESIGN • 800.797.6585 71

 walkway system support pressure tables

Table 1. Roof Pressures Under 2' Wide Walkway for Various Load Cases Shown

Load one two one two one two

Case 25 psf 50 psf 75 psf 100 psf 150 lb 150 lb 200 lb 200 lb 250 lb 250 lb
Pads
12"x12" 0.9 psi 1.6 psi 2.3 psi 3.0 psi 1.2 psi 2.3 psi 1.6 psi 3.0 psi 1.9 psi 3.7 psi
Pads
18"x18" 0.4 psi 0.7 psi 1.1 psi 1.4 psi 0.6 psi 1.1 psi 0.7 psi 1.4 psi 0.9 psi 1.7 psi

Table 2. Roof Pressures Under 3' Wide Walkway for Various Load Cases Shown

Load one two one two one two

Case 25 psf 50 psf 75 psf 100 psf 150 lb 150 lb 200 lb 200 lb 250 lb 250 lb
Pads
12"x12" 1.3 psi 2.3 psi 3.4 psi 4.4 psi 1.3 psi 2.4 psi 1.7 psi 3.0 psi 2.0 psi 3.7 psi
WALKWAY SYSTEM SUPPORT

Pads
18"x18" 0.6 psi 1.1 psi 1.5 psi 2.0 psi 0.6 psi 1.1 psi 0.8 psi 1.4 psi 0.9 psi 1.7 psi
PRESSURE TABLES

Table 3. Roof Pressures Under 4' Wide Walkway for Various Load Cases Shown

Load one two one two one two

Case 25 psf 50 psf 75 psf 100 psf 150 lb 150 lb 200 lb 200 lb 250 lb 250 lb
Pads
18"x18" 0.9 psi 1.5 psi 2.2 psi 2.8 psi 0.8 psi 1.2 psi 0.9 psi 1.5 psi 1.1 psi 1.8 psi

For the lawn tractor and wagon load modeled as three 600 pound loads at 5' centers,
the pressure expected under the 18"x18" pads is 1.2 psi. If the lawn tractor and wagon is
modeled as a 1000, 600, and 400 pound series at 5' centers, the pressure expected under
these pads increases to 1.8 psi, still well below the previously established limit of 5.0 psi.

72
WALKWAY SYSTEM SUPPORT PRESSURE TABLES

BASIS OF FINDINGS

• PHP provided the load cases considered.

• The 1994 Uniform Building Code design load for pedestrian bridges and
walkways is a uniform load of 100 psf. Stage catwalks require a design live load
of 40 psf.
• Wind loads and earthquake loads have not been considered in the pressure
calculations.
• The design of the frame support system and lateral bracing was not considered
in this study.
• New roof system structures designed by others should account for the additional
pressure loads.
• The capacity of an existing roof structure will be evaluated before installation of
the walkway system.
• OSHA considerations for hand rail requirements have not been addressed.

WALKWAY SYSTEM SUPPORT

PRESSURE TABLES
We appreciate the opportunity to continue serving as your Facilities Engineering
consultant. We look forward to working with you on this and other projects. If you have
any questions or comments, please do not hesitate to contact us.

Sincerely,

LAW ENGINEERING AND ENVIRONMENTAL SERVICES, INC.

Ray F. Drexler, P.E. Mark H. Hopmann, P.E.

Project Engineer Principal Engineer

PHP SYSTEMS AND DESIGN • 800.797.6585 73

CROSSOVER & PLATFORM
SYSTEMS

CROSSOVER & PLATFORM

SYSTEMS

PHP SYSTEMS AND DESIGN • 800.797.6585 75

 CROSSOVER SYSTEMS

Standard System Specifications

1. Crossover Systems routed across piping shall be supported off the roof by an engineered
prefabricated Crossover System specifically designed to be installed directly on the roof
without roof penetration, flashing or damage to the roofing material.
2. The system shall be designed to support all weight as required.
3. The system shall consist of the following:
a. Bases are to be made of High Density Polypropylene Plastics and other additives for
UV protection. Material with inserts for channel or threaded rods as required.
b. The substructure is made of a 12 gauge back to back channel G-1012A, and is
supported directly from the bases.
c. The grating material is made from mill-galvanized carbon steel.
Metal gauge: 14-ga. steel, 16-ga. steel, 18-ga. steel
Finish: Mill-galvanized before fabrication, ASTM A525
Section Width: 12", 9", 6"
Channel Height: 11⁄2", 21⁄2", 3" and 4"
Flange Options: FM, MM, FF
Surface condition: MG – traction grip, MS – smooth
d. The handrail is assembled from a 12 gauge, 15⁄8" channel G-5812.
4. All substructures and handrails shall be galvanized steel. Nuts, threaded rods and washers
shall be electro-plated.
5. Crossover Systems shall be manufactured by PHP.
CROSSOVER & PLATFORM

Installation
SYSTEMS

1. Lay out isolation pads.

2. Place bases on isolation pads.
3. Insert preassembled steps into bases.
4. Attach grating to steps with hold-down clamps.
5. Attach intermediate and top handrails, if provided.

76
 CROSSOVER SYSTEMS

CROSSOVER & PLATFORM

SYSTEMS

Crossover Systems for Built-up, Single-ply and

Sloped, Standing Seam Metal Roofs

PHP SYSTEMS AND DESIGN • 800.797.6585 77

 PLATFORM SYSTEMS

Standard System Specifications

1. Standard Platform Systems shall be supported on the roof by an engineered,
prefabricated PHP Platform System specifically designed to be installed directly on
the roof without roof penetrations, flashings or damage to the roofing material.
2. The system shall be designed to support all weight as required.
3. The system shall consist of the following:
a. Bases are to be made of High Density Polypropylene Plastics and other additives
for UV protection. Material with inserts for channel or threaded rods as required.
b. The substructure is made of a 12 gauge back to back channel G-1012A, or 15⁄8"
B22TH and 17⁄8" BTS22TH channel, and is supported directly from the bases.
c. The grating material is made from mill-galvanized carbon steel.
Metal gauge: 14-ga. steel, 16-ga. steel, 18-ga. steel
Finish: Mill-galvanized before fabrication, ASTM A525
Section Width: 12", 9", 6"
Channel Height: 11⁄2", 21⁄2", 3" and 4"
Flange Options: FM, MM, FF
Surface condition: MG – traction grip, MS – smooth
d. The handrail is assembled from a 12 gauge, 15⁄8" channel G-5812.
4. All substructures and handrails shall be galvanized steel. Nuts, threaded rods and
washers shall be electro-plated.
5. Platform Systems shall be manufactured by PHP.
CROSSOVER & PLATFORM

Installation
SYSTEMS

1. Lay out isolation pads.

2. Place bases on isolation pads.
3. Insert preassembled substructures into bases.
4. Attach grating to substructures with hold-down clamps.
5. Attach intermediate and top handrails, if provided.

78
 PLATFORM SYSTEMS

CROSSOVER & PLATFORM

SYSTEMS

Platform Systems for Media, Telecom and HVAC Applications

PHP SYSTEMS AND DESIGN • 800.797.6585 79

 GENERAL SPECIFICATIONS
2004 Edition/Division Numbers
Seven, Twenty-two, Twenty-three, Twenty-six and Twenty-seven
1994 Edition/Division Numbers
Seven and Fifteen

GENERAL SPECIFICATIONS

PHP SYSTEMS AND DESIGN • 800.797.6585 81

 GENERAL SPECIFICATIONS
1.1 Section Includes
A. Portable, non-penetrating, rooftop support systems for:
1. Piping
2. Ducting
3. Conduits and cables
4. HVAC equipment
5. Plumbing equipment
6. Telecommunications equipment
7. Industrial process equipment
8. Walkways, Crossovers & Platform Systems
Seismic and High Wind application for items 1 thru 8 listed above.

1.2 Related Sections

A. Section 07 00 00 - Thermal & Moisture Protection
B. Section 07 71 00 - Roof Specialties
C. Section 07 72 00 - Roof Accessories
D. Section 07 72 46 - Roof Walkways
E. Section 07 76 00 - Roof Pavers
F. Section 21 00 00 - Fire Suppression
1. 21 05 29 - Hangers & Supports for Fire Suppression Piping & Equipment
2. 21 05 48 - Vibration & Seismic Controls for Fire Suppression Piping & Equipment
G. Section 22 00 00 - Plumbing
1. 22 05 29 - Hangers & Supports for Plumbing, Piping & Equipment
2. 22 05 48 - Vibration & Seismic Controls for Plumbing, Piping & Equipment
H. Section 23 00 00 - Heating, Ventilating, and Air Conditioning (HVAC)
1. 23 05 29 - Hangers & Supports for HVAC Piping & Equipment
GENERAL SPECIFICATIONS

2. 23 05 48 - Vibration & Seismic Controls for HVAC Piping & Equipment

I. Section 23 33 00 - Air Duct Accessories
J. Section 26 00 00 - Electrical
K. Section 27 00 00 - Communications

1.3 References
A. ASTM A 123/A 123M - Standard Specification for Zinc (Hot-Dip Galvanized) Coatings
on Iron and Steel Products
B. ASTM A 153/A 153M - Standard Specification for Zinc Coating (Hot-Dip) on Iron and
Steel Hardware
C. ASTM D 1929 - Standard Test Method for Determining Ignition Temperature of Plastics
D. MSS SP-58 - Pipe Hangers and Supports — Materials, Design and Manufacture;
Manufacturers Standardization Society of the Valve and Fittings Industry
E. MSS SP-69 - Pipe Hangers and Supports — Selection and Application; Manufacturers
Standardization Society of the Valve and Fittings Industry

82
 GENERAL SPECIFICATIONS
1.4 System Description
A. Piping on roof shall be supported by an engineered, prefabricated PHP System specifically
designed to be installed on the roof without roof penetrations, flashing or damage to the
roofing material. The system shall consist of Bases, made of High Density Polypropylene
Plastics and other additives for UV protection, a HDG structural steel frame and suitable
pipe hangers for the application. Nuts, threaded rods and washers shall be HDG Spring
nuts and their bolts will be electro-plated. The system shall be custom designed to fit the
piping and conduits to be installed and the actual conditions of service. Pipe supports shall
be manufactured by PHP Systems & Design i.e. Portable Pipe Hangers
(see 2.2 A).
B. Ductwork on roof shall be supported by an engineered, prefabricated PHP-Duct System
specifically designed to be installed on the roof without roof penetrations, flashing or
damage to the roofing material. The system shall consist of Bases, made of High Density
Polypropylene Plastics and other additives for UV protection, and a HDG structural steel
frame. Nuts, threaded rods and washers shall be HDG Spring nuts and their bolts will be
electro-plated. The system shall be custom designed to fit the load requirements that will
be required. Duct supports shall be manufactured by PHP Systems & Design i.e. Portable
Pipe Hangers (see 2.2 B).
C. Elevated Walkway Systems routed across the roof shall be supported by an engineered,
prefabricated PHP-Walkway System specifically designed to be installed on the roof
without roof penetrations, flashing or damage to the roofing material. The system shall
consist of Bases, made of High Density Polypropylene Plastics and other additives for UV
protection, a galvanized structural steel frame, walkway planking, and handrail if required.
Nuts, threaded rods and washers shall be HDG Spring nuts and their bolts will be
electro-plated. The system shall be custom designed to fit the load requirements that
will be required. Walkway Systems shall be manufactured by PHP Systems & Design i.e.
Portable Pipe Hangers.
D. PHP Telecommunication Platform Systems on the roof shall be supported by an

GENERAL SPECIFICATIONS
engineered, prefabricated PHP Platform Systems specifically designed to be installed
directly on the roof without roof penetration, flashing or damage to the roofing material.
The system shall be designed to support all weight as required. The system shall consist
of Bases, made of High Density Polypropylene Plastics and other additives for UV
Protection, galvanized substructures, bar grating and handrails if required. Nuts, threaded
rods and washers shall be HDG Spring nuts and bolts for spring nuts will be
electro-plated. Telecommunications Platform Systems shall be manufactured by PHP
Systems & Design i.e. Portable Pipe Hangers.
E. Seismic and High Wind applications are available for all categories listed above. If required,
PHP Systems & Design i.e. Portable Pipe Hangers can design a system for your Seismic
and High Wind Application (See 2.2 E).

PHP SYSTEMS AND DESIGN • 800.797.6585 83

 GENERAL SPECIFICATIONS
1.5 Submittals
A. Submit under provisions of Section 01 30 00.
B. Product Data: Submit all products proposed for use, describing physical characteristics
and method of installation.
C. Shop Drawings: Show installation layout, sizes of units and details of installation.
D. Verification Samples: Actual samples of bases, each type of support, hanger and fasteners
and no less than 12 inches (300 mm) of framing members.

1.6 Quality Assurance

A. Manufacturer Qualifications: Company must specialize in manufacturing pipe support
systems and have a minimum of eight years of documented experience.
B. Installer Qualifications: Company must be approved by manufacturer and have a
minimum of five years experience in installation of piping support systems.
C. References: Submit list of references comprising no less than 10 installations that have
been in use for a minimum of five years.
D. Include contact name and phone numbers for each reference.
E. Pre-Installation Meeting: After approval of submittals, but before beginning installation, con-
duct a meeting at the project site attended by the architect, contractor, and the installers of
roofing, mechanical and electrical piping.
1. The purpose of meeting is to describe in detail the installation process and to establish
agreement, coordination and responsibilities. Call (800) 797-6585 to set up a meeting.
2. Prepare detailed meeting report and distribute copies to the architect and all
attendees.

1.7 Delivery, Storage, And Handling

A. Deliver all materials to project site in manufacturer’s original packaging, marked with
GENERAL SPECIFICATIONS

manufacturer’s name, product model names and catalog numbers, identification numbers,
and other related information.
B. Store materials under cover until needed for installation.

84
 GENERAL SPECIFICATIONS

1.8 Warranty
A. See Section 01 78 00 - Closeout Submittals - for additional warranty requirements.
B. Submit manufacturer’s warranty that base materials will perform without failure for the
same period as roofing warranty (up to twenty years) required under Division 7 roofing
section.
C. Limited Warranty: We guarantee to repair or replace, at our option, any products we find in
our sole discretion to be structurally defective in material or workmanship for a period of
five (5) years from date of delivery to purchaser. Such warranty specifically excludes repair
of non-structural rust damage to products. Our obligation with respect to material found
by us to be defective shall be limited to replacement or repair and in no event shall we be
liable for transportation to or from our factory, installation, adjustments or any expenses
or damages arising in connection with such material. PHP Systems & Design i.e. Portable
Pipe Hangers accepts no liability for products not designed and laid out by PHP or for any
altercation or modification to the system not authorized by PHP. No warranty expressed or
implied shall cover defects caused by outside contractors/installers of the PHP System.

2.1 Manufacturers
A. Acceptable Manufacturer: PHP Systems & Design i.e. Portable Pipe Hangers;
5534 Harvey Wilson Drive, Houston, Texas 77020. ASD.
Tel: Toll-free (800) 797-6585 or Local (713) 672-5088. Fax: (713) 672-1170.
www.portablepipehangers.com. Email: info@portablepipehangers.com
B. Requests for substitutions will be considered in accordance with provisions of Section
01 60 00.
C. Substitutions must be submitted and approved seven days prior to date of pre-bid conference.

2.2 Applications

GENERAL SPECIFICATIONS
A. Support pipes, conduit, cable trays and ducting, a minimum of 6 inches (150 mm) above
roof surface.
B. Support Spacing: 10 feet. MAXIMUM
C. For Electrical and Gas Lines 2-1/2 inches (64 mm) in diameter or less, up to 10" above
roof: Portable Pipe Hanger Model number: SS8.
D. For Electrical and Gas Lines 3-1/2 inches (89 mm) in diameter or less, up to 16" above
roof: Portable Pipe Hanger Model number PP10.
E. For Gas Lines 4 to 6 inches (100-150 mm) in diameter, up to 12" above roof: Portable Pipe
Hanger Model number RB18.
F. For single Electrical and Gas Lines 3 to 8 inches (80-200 mm) in diameter: Portable Pipe
Hanger Model number PS 1-2.
G. For Multiple Lines: Portable Pipe Hanger Model number PSE custom.

PHP SYSTEMS AND DESIGN • 800.797.6585 85

 GENERAL SPECIFICATIONS
2.2 Applications (cont'd.)
1. Accessories for PSE Custom and Other Applications when required.
H. On Sloped Roof Surfaces, Where slope exceeds 1/4 inch per foot (13 mm per 305 mm):
Provide base with swivel for slope adjustment. Note: PHP approved bracing required
when using base with swivel.
I. Un-insulated Piping: Roller support or clevis hanger.
J. Insulated Piping: Band hanger supported from horizontal channel or clevis hanger with
Insulation Protection Shield.
K. Conduit: Band hanger supported from horizontal channel.
L. Bracing required when using base with swivel, when pipe exceeds 24" above roof, or
when thermal expansion of pipe is excessive.
M. For Ductwork: Portable Pipe Hanger Model number PPH-D – Goal Post style.
N. For Ductwork: Portable Pipe Hanger Model number PPH-D – Enclosed style.
O. Walkway, Crossover & Equipment Platform Access
1. Portable Pipe Hangers Crossover Systems routed across the roof shall be supported
off the roof by an engineered prefabricated PPH Walkway System specifically designed
to be installed directly on the roof without roof penetration, flashing or damage to the
roofing material.
2. The system shall be designed to support all weight as required.
3. The system shall consist of the following:
a. Bases are to be made of High Density Polypropylene plastics and other
additives for UV protection.
b. The substructure is made of a 12 gauge back-to-back channel G-1012A, and
are supported directly from the bases.
c. The grating material is made from mill-galvanized carbon steel. Metal Gauge:
GENERAL SPECIFICATIONS

14-ga. Steel or 18-ga. Steel. Finish: Mill-galvanized before fabrication,

ASTM A525. Section Width: 12"(standard), 9", 6"., Channel Height: 1 ½" or 2
½"(standard). Flange Options: FM or MM. Surface Condition: MG-traction grip
or MS-smooth.
d. The handrail is assembled from a 12 gauge, 1 5/8" channel G-5812.
e. All substructures and handrails shall be galvanized steel. Spring nuts and their
bolts will be electro-plated.
f. Elevated walkway systems shall be manufactured by PHP Systems & Design
i.e., Portable Pipe Hangers.
P. Telecom Platform Specifications:
1. Portable Pipe Hangers Telecommunications Platform Systems: Equipment shall be
supported by an engineered, prefabricated PHP Platform System specifically designed
to be installed directly on the roof without roof penetration, flashing or damage to the
roofing system.
2. The Platform System shall be designed to support all weight as required.

86
 GENERAL SPECIFICATIONS
2.2 Applications (cont'd.)
3. The Platform System shall consist of the following:
A. Bases are to be made of High Density Polypropylene Plastics and other additives
for UV protection.
B. Leveling assembly for height adjustment.
C. The substructure is made of a 12 gauge channel, and are supported directly from
the bases.
D. The grating material is serrated. Bar grating type: WB-4, Finish: HDG, Section
Width: As required, Bar grating height: 1", Surface condition: serrated.
E. The handrail is assembled from a 12 gauge, 1 5/8" channel, if required.
F. All substructures and handrails shall be galvanized steel. Nuts, threaded rods and
washers shall be HDG Spring nuts and their bolts will be electro-plated.
G. Telecommunications Platform System shall be manufactured by PHP Systems &
Design i.e., Portable Pipe Hangers.
H. Attachment of Base to Roof Surface when required for Seismic and High Wind
Application.
I. No attachment to roof surface.
J. Adhesive attachment to roof surface.
K. Mechanically fastened to roof deck.

2.3 Materials
A. Portable Support System: Engineered, portable system specifically designed for installa-
tion without the need for roof penetrations or flashings and without causing damage to the
roofing membrane.
1. Design system using high density/high impact polypropylene bases with anti-oxidants
and carbon black for UV protection and framing for support is 1 5/8" B22TH or 1 7/8"
BTS22TH.
2. Custom design system to fit piping, conduits, equipment, or walkways to be installed

GENERAL SPECIFICATIONS
and actual conditions of service and loading.
3. Pipe Supports: Provide suitable hangers and supports.
4. Duct and Equipment Supports: Factory fabricated to support exact duct sizes and
equipment to be installed.
5. Walkways and Platforms: Provide galvanized slotted metal grating, in configurations as
indicated, and handrails where indicated.
B. Bases: Injection molded high density/high impact polypropylene with UV-inhibitors and
anti-oxidants, conforming to the following:
1. Moisture Content: Negligible.
2. Shrinkage/Swelling Due to Moisture: Negligible.
3. Density: 55.8 lb/cu ft (894 kg/cu m).

PHP SYSTEMS AND DESIGN • 800.797.6585 87

 GENERAL SPECIFICATIONS

2.3 Materials (cont'd.)

4. Insect Resistance: No known insect damage potential.
5. Chemical Resistance (oil, brake fluid, gasoline, diesel, antifreeze, battery acid and
sulfuric acid: No visual or physical change apparent.
6. Flammability: No ignition after 10 minutes, 25 kW/m, when tested in accordance with
ASTM D 1929.
7. Sized as required by loading conditions and as indicated on the drawings.
8. Shop fabricated with inserts for square tubing or threaded rods as required.
9. Color: Integral black color as molded.
10. Bases for Mechanical Attachment: Sealant chamber around penetration point, with
injection port for sealing after fastening; beveled lip for sealant bead around entire
diameter.
11. Do not use bases containing carbonated plastics, press molded recycled rubber and
plastics, steel, stainless steel or any injection molded threaded receivers.
C. Steel Framing:
1. Channel Types: 1-5/8 inch (41.3 mm) B22TH or 1-7/8 inch (47.6 mm) BTS22H, as
required for loading conditions.
2. Thickness: 12 gage (2.7 mm).
3. Form: Roll-formed 3-sided channel, perforated with 9/16 inch (14.3 mm) holes at
1-7/8 inch (47.6 mm) centers on three sides.
4. Finish: Hot dip galvanize in accordance with ASTM A 123 after fabrication, free of
roughness, whiskers, unsightly spangles, icicles, runs, barbs, sags, droplets and other
surface blemishes.
5. Do not use tubing or tube steel.
D. Stainless Steel Framing:
GENERAL SPECIFICATIONS

1. Channel Types: 1-5/8 inch (41.3 mm) or 1-7/8 inch (47.6 mm), as required for loading
conditions.
2. Thickness: 12 gage (2.7 mm).
3. Form: Roll-formed 3-sided channel.
4. Finish: Mill finish.
5. Do not use tubing or tube steel.
E. Pipe Supports and Hangers: Conform to MSS SP-58 and MSS SP-69 and as follows:
1. Fabricated of carbon steel where framing is carbon steel; fabricated of stainless steel
where framing is stainless steel; finished same as framing.
2. Sizes 2-1/2 inch (63 mm) and smaller: Single roller supports for piping subject to
expansion and contraction; 3-sided channels and pipe clamps.
3. Sizes 3 inch (76 mm) and larger: Rollers, clevis hangers, or band hangers, to allow for
expansion and contraction without movement of the bases or framing.

88
 GENERAL SPECIFICATIONS
2.3 Materials (cont'd.)
F. Accessories: Clamps, bolts, nuts, washers and other devices as required for a complete
system.
1. Carbon Steel: Hot-dip galvanized in accordance with ASTM A 153/A 153M.
2. Stainless Steel: Mill finish.
3. For Mechanical Fastening to Deck: On wood and steel decks, use bolts with steel plate
to attach to deck; on concrete decks use threaded rods and epoxy drop-in anchors,
with rod embedded at least 1-3/4 inches (44 mm) into concrete.

3.1 Examination
A. Verify that roofing system is complete and that roof surfaces are smooth, flat and ready to
receive work of this section.
B. Verify that roof surface temperature is at minimum 60 degrees F (15.5 degrees C), for
proper adhesive performance.

3.2 Preparation
A. Clean surfaces of roof in areas to receive portable support bases.
B. Sweep loose gravel from gravel surfaced roofs.
C. Remove dirt, dust, oils and other foreign materials.
D. Use care in handling portable support system components during installation to avoid
damage to roofing, flashing, equipment or related materials.

3.3 Installation
A. Pipe, Cable, Conduit and Equipment Support Systems:
1. Locate bases and support framing as indicated on drawings and as specified herein.
Provide complete and adequate support of all piping, ducts and conduit, whether or not

GENERAL SPECIFICATIONS
all required devices are shown.
2. The use of wood for supporting piping is not permitted.
3. Provide supports spaced so deflection of piping does not exceed 1/240 of span.
4. Install framing at spacing indicated, but in no case at greater than 10 ft (3 m) on
center.
5. Accurately locate and align bases.
6. Sweep off loose gravel, if present.
7. Consult manufacturer of existing or new roofing system regarding type of isolation
pads required for their roofing system. Isolation pads are added protection for the roof-
ing system and are placed between the roof and base.
8. After isolation pads are installed, place bases on pads.
9. Adhere or mechanically attach if required by code.
10. Where applicable, replace gravel around bases.

PHP SYSTEMS AND DESIGN • 800.797.6585 89

 GENERAL SPECIFICATIONS
3.3 Installation (cont'd.)
11. Set framing posts into bases and attach framing post to base bracket with bolt provided.
12. Use galvanized fasteners for galvanized framing and stainless steel fasteners for stainless
steel framing.
B. Duct Support Systems
1. All PHP Systems are as pre-assembled as possible.
2. Sweep off loose gravel, if present.
3. Consult manufacturer of existing or new roofing system regarding type of isolation pads
required for their roofing system.
4. Determine spacing of supports.
5. After isolation pads are installed, place bases on pads.
6. Place pre-assembled support into bases and attach framing post to base bracket with
bolt provided then adjust as needed. Note, support shall be adjustable to maintain existing
elevation and slope.
C. Walkways, Crossovers and Platforms:
1. Install substructures at spacing indicated for walkway systems, but not greater than 5 ft
(1.5 m) on center.
2. Accurately locate and align bases.
3. Consult manufacturer of existing or new roofing system regarding type of isolation pads
required for their roofing system.
4. After pads are installed, place bases on pads.
5. Adhere or mechanically attach if required by code.
6. Where applicable, replace gravel around bases.
7. Set legs of substructures into bases.
8. Layout and fasten planking to substructures.
9. Where handrails are required, install as follows:
GENERAL SPECIFICATIONS

a. Install intermediate rails without tightening.

b. Make minor adjustments as needed, such as spacing of substructures to
accommodate intermediate handrails, and install hold-downs.
c. Secure intermediate handrails and install top handrails.
D. Telecommunications
1. All PHP systems are as pre-assembled as possible.
2. Sweep off loose gravel, if present.
3. Consult manufacturer of existing or new roofing system regarding type of walk pads
required for their roofing system.
4. Determine spacing of supports.
5. After pads are installed, place bases on pads.
6. Attached pre-assembled support to bases and adjust as needed. Note, support shall be
adjustable to maintain existing elevation and slope.
7. Lay out bar grating on substructures and attach.

90
 GENERAL SPECIFICATIONS
3.4 Field Quality Control
A. When requested by the Architect, provide a factory-trained representative of the
manufacturer to visit the site while the work is in progress to assure that the installation
conforms to the design requirements and the manufacturer’s installation requirements.

3.5 Cleaning and Protection

A. R
 emove all packaging, unused fasteners, adhesive and other installation materials from the
project site.
B. Remove adhesive from exposed surfaces of supports and bases, and leave the work area in
clean condition.
C. Provide protection as required to leave the work area in undamaged condition at the time
of completion.

GENERAL SPECIFICATIONS

PHP SYSTEMS AND DESIGN • 800.797.6585 91

ENGINEERING TABLES

ENGINEERING TABLES

PHP SYSTEMS AND DESIGN • 800.797.6585 93

 ENGINEERING TABLES

Index
Table 1 Summary of Test Results
Table 2 Product Information - Standard Bases
Table 3 Maximum Allowable Loading by Pipe Hanger Base Size and
Roof Insulation Type
Table 4 Test Data Summary Sheet - Hardness Test
Table 5 Test Data Summary Sheet - Compression Test
Table 6 Test Data Summary Sheet - Flexure (Bending) Test
Table 7 Test Data Summary Sheet - Punching Resistance Test
Table 8 Typical Roof Loads - Small Size Portable Pipe Hanger Assembly
Table 9 Typical Roof Loads - Medium Size Portable Pipe Hanger Assembly
Table 10 Typical Roof Loads - Large Size Portable Pipe Hanger Assembly
Table 11 Loads - Standard Pipe
Table 12 Roof Deck Insulation Compression Strengths

Graphs of the test data of some of the above tests are included in the Appendix.
ENGINEERING TABLES

94
 engineering TABLES
Table 1 - Material Properties
CHARACTERISTIC TEST RESULTS
Color Visual Black
Hardness ASTM D2240-84
(test averages) (See Table 4)
at -30° Fahrenheit D70.6
at 73° Fahrenheit D63.5
at 130° Fahrenheit D55.1
Ultimate Compressive Strength ASTM D695-91
(test averages) (See Table 5)
at -30° Fahrenheit 5857 psi
at 73° Fahrenheit 5505 psi
at 130° Fahrenheit 5311 psi
Ultimate Flexural Strength (Yield) ASTM D790-86
(test averages) (Procedure B)
at -30° Fahrenheit 4961 psi
at 73° Fahrenheit 4240 psi
at 130° Fahrenheit 2641 psi
Modules of Elasticity
(Averages based on Flexure)
at -30° Fahrenheit 36.6 x 104 psi
at 73° Fahrenheit 28.0 x 104 psi
at 130° Fahrenheit 14.1 x 104 psi

Abbreviations: psi = pounds per square inch

Table 2 - Standard Bases

ENGINEERING TABLES
SMALL BASE MEDIUM BASE LARGE BASE
Dimensions (inches) 9¾" by 15¾" 12" x 12" 18" x 18"
Base Area 154 square inches 144 square inches 324 square inches
Weight (base only) 4.3 pounds 3.7 pounds 7.8 pounds

PHP SYSTEMS AND DESIGN • 800.797.6585 95

 ENGINEERING TABLES
Table 3 - Maximum Allowable Loading by Pipe Hanger

DECK INSULATION STRESS SMALL BASE MEDIUM BASE LARGE BASE

Expanded Polystyrene 5 psi 770 pounds 720 pounds 1,620 pounds
Glass/Mineral Fiber 5 psi 770 pounds 720 pounds 1,620 pounds
Polyisocyanurate 5 psi 770 pounds 720 pounds 1,620 pounds
Extruded Polystyrene 6 psi 924 pounds 864 pounds 1,944 pounds
Fiber Board 6 psi 924 pounds 864 pounds 1,944 pounds
Perlite 17.5 psi 2,695 pounds 2,520 pounds 5,670 pounds
Cellular Glass 50 psi 7,700 pounds 7,200 pounds 16,200 pounds

Please note that the placement of individual bases must be reviewed by a structural engineer to ensure
that the roof structure is not overloaded.
Based on a safety factor of 2, against published minimum ultimate values of insulation compression
strength (NRCA Commercial Low-Slope Roofing Materials Guide, 1994 Edition). Designer must also
ensure adequacy against punching resistance and overall structural integrity of the roof on which the
assembly is placed. Resultant stresses from lateral loads on pipes may result in higher stresses in
substrate than plain gravity loads.

Table 4 - Hardness Test Values

TEST SPECIMEN TEMPERATURE

TEST NUMBER
-30° F 73° F 130° F
1 70.4 63.6 55
ENGINEERING TABLES

2 70.8 63 55.6
3 70.6 63.8 54.8
AVERAGE 70.6 63.5 55.1

Abbreviations: ºF = degrees Fahrenheit

96
 ENGINEERING TABLES
Table 5 - Ultimate Compression Strengths
Test Method: ASTM D695-91

TEMPERATURE DURING TEST

TEST NUMBER
-30°F 73°F 130°F
1 5,592 psi 5,524 psi 5,380 psi
2 5,880 psi 5,548 psi 5,212 psi
3 6,100 psi 5,444 psi 5,340 psi
AVERAGE 5,857 psi 5,505 psi 5,311 psi

Abbreviations: oF = degrees Fahrenheit

psi = pounds per square inch

Table 6 - Flexural Stresses

TEMPERATURE DURING TEST

-30°F 73°F 130°F

Fb E x 10 4 Fb E x 10 4 Fb E x 10 4
#
(psi) (psi) (psi) (psi) (psi) (psi)

1 5,210 36.2 4,485 35.2 3,031 14.8

2 4,608 35 4,030 22.5 2,497 18.5

3 5,064 38.6 4,205 26.3 2,394 9.1

AVERAGE 4,961 36.6 4,240 28 2,641 14.1

ENGINEERING TABLES
Abbreviations: lb = pound
# = number
oF = degrees Fahrenheit
psi = pounds per square inch
Avg = average
Failure as no increase in load capacity
Fb = Maximum Stress at Extreme Fiber in Bending
Fb = 3PmaxL/2bh²
L = span length (16 inches)
b = beam width (6 inches)
h = beam height (1.25 inches)
E = modules of elasticity
Lease values of tests

PHP SYSTEMS AND DESIGN • 800.797.6585 97

 ENGINEERING TABLES

Table 7 - Ultimate Punching Shear Resistance Loads

(Pounds/Inch Deflection)

TEMPERATURE OF TEST SPECIMEN

BASE TYPE TEST #
-30°F 73°F 130°F

Small Base Posts 1 4,980/.20 9,910/.23 8,560/.6

(15¾" x 9¾") Pipe Support 2 6,180/.30 9,850/.21 9,640/.6
3 5,270/.23 9,870/.22 7,740/.6

Medium Base 1 9,980/.43 9,000/.63 7,630/1.0

(12" x12") 2 9,910/.43 9,670/.63 7,480/1.0
3 9,930/.34 9,960/.58 9,340/1.0

Large Base 1 7,700/.71 6,940/1.1 4,810/1.0

(18" x 18") 2 9,350/.96 6,550/.96 6,130/1.42
3 8,810/.82 7,220/1.38 5,580//1.28

Small Base Roller 1 4,030/.16 3,510/.15 3,180/.22

(15¾" x 9¾") Pipe Support 2 3,550/.26 4,110/.18 2,790/.21
3 3,580/.20 3,890/.16 3,280/.26

Small Base Roller 1 3,060/.23 3,070/.36 2,900/.50

(15¾" x 9¾") Pipe Support 2 3,420/.24 3,220/.24 2,900/.46
3 2,960/.30 2,960/.31 3,000/.44

NOTE: The deflection noted in the values for the roller and beam pipe support are a combination
of deflection of the pipe support assembly and the pipe hanger base.

Abbreviations: # = Number
ENGINEERING TABLES

°F = degrees Fahrenheit

98
 ENGINEERING TABLES

Table 8 - Typical Roof Loads and Resulting Gravity

(Only Bearing Stresses)
Medium Size Portable Pipe Hanger Assembly
Base Dimensions: 9¾" x 15¾"
Base Weight: 4.3 lb each, measured
Frame Weight: 9 lb, assumed
Pipe Hanger weight (4 to 6"): 4 lb each

CONTENTS SPACING OF PIPE SUPPORTS

PIPE SIZE # OF PIPES
OF PIPE 6 FOOT 8 FOOT 10 FOOT

115 lb 147 lb 177 lb

4 inch 2 WATER (0.75 psi) (0.96 psi) (1.15 psi)

207.3 lb 267.3 lb 327.3 lb

6 inch 2 WATER (1.35 psi) (1.74 psi) (2.13 psi)

Abbreviations: # = number
lb = pounds
psi = pounds per square inch

ENGINEERING TABLES

PHP SYSTEMS AND DESIGN • 800.797.6585 99

 ENGINEERING TABLES

Table 9 - Typical Roof Loads and Resulting Gravity

(Only Bearing Stresses)
Medium Size Portable Pipe Hanger Assembly
Base Dimensions: 12" by 12"
Base Weight: 8 lb each assumed, 3.71 lb measured, 16 lb per assembly
Frame Weight: 9 lb
Pipe Hanger Weight (4 to 6"): 4 lb each

CONTENTS SPACING OF PIPE SUPPORTS

PIPE SIZE # OF PIPES
OF PIPE 6 FOOT 8 FOOT 10 FOOT
4 inch Pipe 1 GAS 94 lb 115 lb 139 lb
(0.36 psi) (0.44 psi) (0.53 psi)

WATER 127 lb 159 lb 189 lb

(0.49 psi) (0.61 psi) (0.73 psi)

2 GAS 163 lb 205 lb 253 lb

(0.63 psi) (0.79 psi) (0.97 psi)

WATER 229 lb 293 lb 353 lb

(0.88 psi) (1.1 psi) (1.4 psi)

3 GAS 232 lb 295 lb 367 lb

(0.89 psi) (1.1 psi) (1.4 psi)

WATER 331 lb 427 lb 519 lb

(1.3 psi) (1.7 psi) (2.0 psi)
6 inch Pipe 1 GAS 139 lb 179 lb 219 lb
(0.53 psi) (0.69 psi) (0.84 psi)

WATER 219 lb 279 lb 339 lb

(0.84 psi) (1.1 psi) (1.3 psi)

2 GAS 253 lb 333 lb 413 lb

ENGINEERING TABLES

(0.97 psi) (1.3 psi) (1.6 psi)

WATER 413 lb 533 lb 653 lb

(1.6 psi) (2.1 psi) (2.51 psi)

3 GAS 376 lb 487 lb 607 lb

(1.4 psi) (1.9 psi) (2.3 psi)

WATER 607 lb 787 lb 967 lb

(2.33 psi) (3.0 psi) (3.7 psi)

Abbreviations: lb: pounds

psi: pounds per square inch

100
 ENGINEERING TABLES
Table 10 - Typical Roof Loads
Large Size Portable Pipe Hanger Assembly
Nominal Base Dimensions: 18" by 18" (calculations based on 17" X 17")
Base Weight: 13 lb each, 26 per assembly
Frame Weight: 16 lb
Hanger weight: 4 lb each ( 4" and 6"); 16 lb each (8"); 20 lb each (est) (10" and 12")

PIPE NUMBER OF CONTENTS SPACING OF PIPE SUPPORTS
SIZE PIPES OF PIPE 6 FEET 8 FEET 10 FEET
111 lb 132 lb 156 lb
GAS (0.19 psi) (0.23 psi) (0.27 psi)
1
144 lb 176 lb 206 lb
WATER (0.25 psi) (0.31 psi) (0.36 psi)
180 lb 222 lb 270 lb
GAS (0.32 psi) (0.39 psi) (0.47 psi)
4 inch 2
264 lb 310 lb 376 lb
WATER (0.43 psi) (0.54 psi) (0.65 psi)
249 lb 312 lb 384 lb
GAS (0.44 psi) (0.55 psi) (0.67 psi)
3
348 lb 444 lb 534 lb
WATER (0.61 psi) (0.78 psi) (0.94 psi)
156 lb 196 lb 236 lb
GAS (0.27 psi) (0.34 psi) (0.41 psi)
1
236 lb 296 lb 356 lb
WATER (0.41 psi) (0.52 psi) (0.62 psi)
270 lb 350 lb 430 lb
GAS (0.47 psi) (0.61 psi) (0.75 psi)
6 inch 2
430 lb 550 lb 670 lb
WATER (0.75 psi) (0.96 psi) (1.2)
384 lb 504 lb 624 lb
GAS (0.67 psi) (0.88 psi) (1.1 psi)
3
624 lb 804 lb 984 lb
WATER (1.1 psi) (1.4 psi) (1.7 psi)
228 lb 288 lb 348 lb
GAS (0.40 psi) (0.51 psi) (0.61 psi)
1
358 lb 458 lb 558 lb
WATER (0.63 psi) (0.80 psi) (0.98 psi)
8 inch

ENGINEERING TABLES
414 lb 534 lb 654 lb
GAS (0.73 psi) (0.94 psi) (1.2 psi)
2
674 lb 874 lb 1,074 lb
WATER (1.2 psi) (1.5 psi) (1.9 psi)
302 lb 382 lb 472 lb
GAS (0.53 psi) (0.67 psi) (0.83 psi)
1
512 lb 662 lb 812 lb
WATER (0.90 psi) (1.2 psi) (1.4 psi)
10 inch
562 lb 722 lb 902 lb
GAS (0.99 psi) (1.3 psi) (1.6 psi)
2
982 lb 1,282 lb 1,582 lb
WATER (1.7 psi) (2.2 psi) (2.8 psi)
362 lb 462 lb 562 lb
GAS (0.64 psi) (0.81 psi) (0.99 psi)
12 inch 1
652 lb 852 lb 1,052 lb
WATER (1.1 psi) (1.5 psi) (1.8 psi)

PHP SYSTEMS AND DESIGN • 800.797.6585 101

 ENGINEERING TABLES

Table 11 - Loads: Standard Galvanized Pipe

WEIGHT SPACING OF PIPE SUPPORTS

PIPE DIAMETER
CONTENTS (Pipe and
(NOMINAL)
contents) 6’ 8’ 10’

GAS 10.79 plf 65 lb 86 lb 110 lb

4"
WATER 16.30 plf 98 lb 130 lb 160 lb

GAS 14.62 plf 88 lb 117 lb 150 lb

5"
WATER 23.28 plf 140 lb 190 lb 230 lb

GAS 18.98 plf 110 lb 150 lb 190 lb

6"
WATER 31.49 plf 190 lb 250 lb 310 lb

GAS 28.56 plf 170 lb 230 lb 290 lb

8"
WATER 50.24 plf 300 lb 400 lb 500 lb

GAS 40.50 plf 240 lb 320 lb 410 lb

10"
WATER 74.60 plf 450 lb 500 lb 750 lb

GAS 49.60 plf 300 lb 400 lb 500 lb

12"
WATER 98.60 plf 590 lb 790 lb 990 lb

Abbreviations: lb = pounds
ENGINEERING TABLES

plf = pounds per linear foot

102
 ENGINEERING TABLES

Table 12 - Roof Deck Insulation Compression Strengths

INSULATION TYPE UNIT WEIGHT COMPRESSIVE STRENGTH

1.0 pcf 10 to 14 psi

1.25 pcf 13 to 18 psi

Expanded Polystyrene
1.5 pcf 15 to 21 psi

2.0 pcf 25 to 33 psi

Extruded Polystyrene 1.3 to 4.1 pcf 12 to 60 psi

Glass Fiber/Mineral Fiber 10 to 15 pcf 10 psi

Cellular Glass 8.5 pcf 100 psi

Fiberboard — 12 to 18 psi

Perlite 10 to 13 pcf 35 to 40 psi

Polyisocyanurate — 10 to 25 psi

Source: National Roofing Contractors Association, Commercial Low-Slope Roofing

Materials Guide, 1994 Edition

Abbreviations: psi: pounds per square inch

pcf: pounds per cubic foot

ENGINEERING TABLES

PHP SYSTEMS AND DESIGN • 800.797.6585 103

 WIND RESISTANCE
AND SEISMIC TABLES

WIND RESISTANCE &

SEISMIC TABLES

PHP SYSTEMS AND DESIGN • 800.797.6585 105

 WIND RESISTANCE &
SEISMIC TABLES

106
WIND RESISTANCE & SEISMIC TABLES

Table 1: Uplift Loading Test Results

BASE CROSS
TEST NO. FAILURE LOAD SECTION PRESSURE PRESSURE LOAD TYPE
(lbf) AREA (psi) (psf)
(sq. inch)

1 1,400 324 4.32 622.22 Uplift

2 1,450 324 4.48 644.44 Uplift
3 1,400 324 4.32 622.22 Uplift
4 1,300 324 4.01 577.78 Uplift
5 1,000 324 3.09 444.44 Uplift
6 1,450 324 4.48 644.44 Uplift

Table 1A: Uplift Loading Test Results

ULTIMATE VERTICAL
TEST LOAD TYPE FAILURE DISPLACEMENT COMMENTS
LOAD (lb) AT FAILURE

Failure in insulation board. All base sheet

1 Uplift 1,400 lb 4 in fasteners remained secure.

Failure in insulation board. One base sheet

2 Uplift 1,450 lb 3 1/8 in fastener pulled out.

Failure of base sheet fasteners in pull out.

3 Uplift 1,400 lb 3 ¼ in Note that one of the fasteners was installed in
the crack between plywood sheets.
No isolator pad installed. Failure in insulation
4 Uplift 1,300 lb 3 in board. All base sheet fasteners remained
secure.
Pin connector in base assembly failed. No
5 Uplift 1,000 lb 2 ½ in apparent distress in roof assembly at time of
failure.

Failure in insulation board. One base sheet

3 3/8 in
WIND RESISTANCE &

6 Uplift 1,450 lb fastener partially pulled out.

SEISMIC TABLES

Average 1,333 lb 3.2 in

Standard Deviation 172 lb 0.5 in

Coefficient of Variation 12.90% 15.40%

PHP SYSTEMS AND DESIGN • 800/797-6585 107

 WIND RESISTANCE & SEISMIC TABLES

Table 2: Fastener Pull-Out Resistance

TEST NUMBER PULL-OUT RESISTANCE

1 74 lbs

2 55 lbs

3 72 lbs

4 82 lbs

5 52 lbs

6 57 lbs

7 55 lbs

8 62 lbs

9 59 lbs

10 78 lbs

AVERAGE 64.6 lbs

STANDARD DEVIATION 10.9

COEFFICIENT OF VARIATION 16.80%

WIND RESISTANCE &
SEISMIC TABLES

108
WIND RESISTANCE & SEISMIC TABLES

Test Data
1. Wind Resistance Test (KEI) 1994

2. Uplift Load Test (KEI) 1998

(Backup for Wind Resistance Test 1994)

3. Evaluation of Overturning (Law Eng.) 1996

4. Walkway System Support Pressure Tables (Law Eng.) 1997

5. Support Pressure Check (Law Eng.) 1997

6. Additional Pad Systems (Law Eng.) 1998

7. Wind Uplift (Law Eng.) 2000

Test Data Reports available upon request.

WIND RESISTANCE &

SEISMIC TABLES

PHP SYSTEMS AND DESIGN • 800.797.6585 109

SUGGESTED ANNUAL
MAINTENANCE

SUGGESTED ANNUAL
MAINTENANCE

PHP SYSTEMS AND DESIGN • 800.797.6585 111

 SUGGESTED ANNUAL MAINTENANCE
PS/PSE Custom Frames:
For 3" & larger Gas, HVAC, & Electrical Pipes
Visual Inspection – Look for the following:
A. Loose or missing hangers in the PS/PSE Frame (adjust or replace as necessary).
B. Check to determine pipe is properly resting in pipe hanger. Adjust all-thread up or down
as necessary.
C. Frames supporting pipe are to be perpendicular to pipe, and hangers are to be directly
under load-bearing horizontal member.
D. Brush any visible rust with a wire brush and spray with a Cold Galvanizing Compound.

E. Check bases for any visible manufacturer’s defects and/or deterioration.

F. Visually confirm pipe is level throughout the entire pipe run.
G. Confirm the proper spacing for each pipe support and verify accuracy of the spacing.
H. Make sure base is located completely on pad underneath base.

PP10 with Channel & PP10 with Roller:

For 2½’’ & smaller Gas & Conduit Lines
Visual Inspection – Look for the following:
A. Check to determine that the pipe is properly resting on the support. Adjust if needed.
B. Brush any visible rust with a wire brush and spray with a Cold Galvanizing Compound.
C. Check bases for any visible manufacturer’s defects and/or deterioration.
D. Confirm the proper spacing for each pipe support and verify accuracy of the spacing.

Equipment Stands:
For Air Conditioning & Air Handling Units
Visual Inspection – Look for the following:
A. Check each Corner Support & Center Support to determine if each support is
load-bearing. Adjust if needed.
B. Brush any visible rust with a wire brush and spray with a Cold Galvanizing Compound.
C. Check bases for any visual manufacturer’s defects and/or deterioration.
D. Confirm unit is level.
SUGGESTED ANNUAL
MAINTENANCE

112
SUGGESTED ANNUAL MAINTENANCE
Duct Supports:
For Roof Mounted Air Ducts
Visual Inspection – Look for the following:
A. Determine that each duct is being properly supported by each duct support.
Adjust if needed.
B. Brush any visible rust with a wire brush and spray with a Cold Galvanizing
Compound.
C. Check bases for any visible manufacturer’s defects and/or deterioration.
D. Confirm the proper spacing for each duct support and verify accuracy of the spacing.

Walkway Systems, Crossovers, & Platforms

Visual Inspection – Look for the following:
A. Brush any visible rust with a wire brush and spray with a Cold Galvanizing
Compound.
B. Check bases for any visible manufacturer's defects and/or deterioration.

C. Confirm unit is level.
D. Check Hold Down Clips on grating. Tighten where needed.
E. Check unit for any loose connections in area of high traffic use.

System Modifications:
Before any additional pipe is added or any modifications are made to any PHP System,
please call 1-800-797-6585 for technical assistance.
Any modification to any PHP System could result in voiding of warranty.

SUGGESTED ANNUAL
MAINTENANCE

PHP SYSTEMS AND DESIGN • 800.797.6585 113

 AFFILIATIONS

!)!

PHP SYSTEMS AND DESIGN • 800.797.6585 115

 partial customer list
ALBERTSON’S BOISE, ID.
BAE SYSTEMS MOJAVE, CA.
BAXTER MEDICAL CHICAGO, IL.
BAYER MYERSTOWN, PA./PITTS, PA.
BROOKHAVEN NATIONAL LABS UPTON, NY.
BROWN & ROOT SERVICES CORP HOUSTON, TX.
BWX TECHNOLOGIES LYNCHBURG, VA.
CAMBRO MANUFACTURING HUNINGTON BEACH, CA.
CHEVRON ENERGY SOLUTIONS PASADENA, CA.
CHICAGO FIELD MUSEUM CHICAGO, IL.
CHICAGO FIRE STATIONS CHICAGO, IL.
CINGULAR WIRELESS EL PASO, TX.
CLEARWIRE KIRKLAND, WA.
DANNON FOODS TARRYTOWN, NY.
FLORIDA DEPT. OF CORRECTIONS OCALA, FL.
GENERAL MOTORS MANSFIELD/ LORDSTOWN, OH.
/WARREN, MI.
GLAXO SMITH KLINE CIDRA, PR.
HEB SAN ANTONIO, TX.
HONEYWELL HOUSTON, TX.
HOOSIER ENERGY CO LOOMINGTON, IN.
HOUSTON INDEPENDENT SCHOOL DIST. HOUSTON, TX.
KRAFT FOODS ALLENTOWN, PA.
LOS ANGELES UNIFIED SCHOOL DISTRICT LOS ANGELES, CA.
M.W. SAUSSE VALENCIA, CA.
MCMASTER CARR CHICAGO, IL.
MERCK PHARM WEST POINT, PA.
ORLANDO UTILITIES COMMISSION ORLANDO, FL.
PFIZER PHARM NEW HAVEN, CT.
PORT AUTORITY NEW YORK/NEW JERSEY NEWARK, NJ.
PROCTOR & GAMBLE CINCINNATI, OH.
PUBLIX SUPERMARKETS, INC LAKELAND, FL.
PURDUE FARMS ROCKINGHAM, NC.
SEARS OVERLAND PARK, KS.
SHELL CHEMICAL HOUSTON, TX.
SIEMENS BUILDING TECHNOLOGIES WINTER PARK, FL.
TEXAS INSTRUMENTS DALLAS, TX.
THE STELLAR GROUP JACKSONVILLE, FL.
TIME WARNER CABLE EL PASO, TX.
TYSON FOODS SPRINGDALE , AR.
U.S. STATE DEPARTMENT SPRINGFIELD, VA.
VERIZON NEW YORK, NY.
WALT DISNEY WORLD CO. LAKE BUENA VISTA, FL.
WEIS FOODS STORESIN, PA. AND MD
WESCO DISTRIBUTION SIOUX CITY, IA.
YALE UNIVERSITY NEW HAVEN, CT.

116
 approval letter
Carlisle Syntec Incorporated
P.O. Box 7000
Carlisle, PA 17013

August 9, 2006

Portable Pipe Hangers, Inc.

5534 Harvey Wilson Drive
Houston, TX 77020

RE: PHP Systems & Design Pipe Supports

Gentlemen:

Please accept this letter as confirmation that the PHP Systems & Design Pipe Supports
are acceptable for use with Carlisle’s single-ply roofing systems. Proper protection of the
single-ply membrane must be provided using either a slip-sheet of extra membrane or a
section of walkway pad below the pipe support in accordance with our standard Sleeper
Detail for the respective membrane type (EPDM, TPO, or PVC).

If our office can be of any other assistance, please feel free to call.

Sincerely,

Wayne R. Asper
Supervisor, Systems Design

PHP SYSTEMS AND DESIGN • 800.797.6585 117

 APPROVAL LETTER
Johns Manville Corporation
10100 W. Ute Ave (80127)
P.O. Box 625001
Littleton, CO 80162-5001
303 978 2367
303 978 2808 Fax
nunnsj@jm.com

August 18, 2006

PHP Systems & Design

5534 Harvey Wilson Dr.
Houston, TX 77020

Attn: Mike Talbot

E-mail: mike@portablepipehangers.com

Re: Product approval

To Whom It May Concern:

Please be advised that PHP Systems & Design products are acceptable to be installed over
our Modified, BUR and Single Ply roofing system provided precautions are taken to protect
the roofing system, i.e. the use of Johns Manville walk pads under the base of PHP prod-
ucts.

If you should have any further questions, please do not hesitate to contact the under-
signed.

Sincerely,

James Nunns
Technical Services Specialist
Johns Manville Roofing Systems
Southwest Region
800 654 0071

118
 TERMS AND CONDITIONS
1. Acceptance. receiver must make a note on the delivery receipt in order
No order shall be binding upon us until accepted in writing to receive replacement material.
by an authorized official at our Home Office. Any contract
9. Warranties.
for sale of goods, and these Terms and Conditions of Sale,
We guarantee to repair or replace at our option any
shall be governed by and constructed in accordance with the
products we find in our sole discretion to be structurally
Uniform Commercial Code as adopted in the State of Texas.
defective in material or workmanship for a period of five
2. Freight. (5) years from date of delivery to purchaser. Such warranty
All prices are F.O.B. our dock or point of shipment, or as specifically excludes repair of non-structural rust damage to
otherwise stated. Air Freight shipments will be made upon products. Our obligation with respect to material found by
request, and will be sent F.O.B. shipping point, FREIGHT us to be defective shall be limited to replacement or repair
COLLECT ONLY. and in no event shall we be liable for transportation to or
from our factory, installation, adjustments or any expenses
3. Catalog Weight, Dimensions and Design Loads.
or damages arising in connection with such material. PHP
Catalog weights and dimensions are careful estimates but
Systems & Design i.e. Portable Pipe Hangers accepts no
not guaranteed. Load designs are based on tests as submitted
liability for products not designed and laid out by PHP
or by calculations of static load applications. In most cases,
or for any altercation or modification to the system not
the load is stated with an applicable factor of safety.
authorized by PHP. No warranty expressed or implied
4. Errors. shall cover defects caused by outside contractors/
Should an error be made filing an order, notify us promptly installers of the PHP System.
and we will immediately attempt to adjust the matter
10. Limitations of Liabilities.
without expense to purchaser.
a) Except as specifically provided in this agreement,
5. Cancellations. we make no warranties, express or implied, and
Cancellation of orders will be accepted only with the specifically disclaim any warranty of merchantability
understanding that we will be reimbursed for expenses or fitness for a particular purpose. Purchaser’s right
incurred as a result of the cancellation. Order for special or to recover damages for any reason whatsoever shall
non-cataloged items are not subject to cancellation after be limited to the total of amounts paid by
production has started under any circumstances. purchaser for purchase of product hereunder.
b) Neither we nor our affiliated parties shall be liable
6. Returned Material.
for any indirect, incidental or consequential
Permission to return any standard merchandise must be
damages, foreseen or unforeseen, including lost
obtained in writing from our home office in Houston, Texas.
profits, sustained in connection with the use of
Return of merchandise must be made within 90 days from
products provided under this agreement, regardless of
the date of shipment and subject to the following conditions:
the form of action, whether in contract or in tort, includ-
A) Return transportation must be prepaid: B) Material not
ing negligence, strict liability or otherwise.
in first class, salable condition will be subject to the cost of
c) Any action against us must be brought within 30
reconditioning; C) Merchandise credit will be allowed on
days after the cause of action accrues. We shall not
the basis of the price charged for the merchandise, less a
be liable for any delay, loss, damage or product
minimum handling charge of 25% for merchandise in
failure attributable to any equipment or actions of
standard packages, 30% for merchandise in less than
any person other than ourselves, our employees
standard packages, and less any outbound freight allowed or
and agents.
paid by us. Returns will only be considered for standard
catalog items, and in normal quantities as determined by 11. Claims.
the Company. Any special or non-cataloged items are not Claims for defective material, shortages, delays, failures in
subject to return for credit under any circumstances. shipment or delivery for any other cause shall be deemed
waived and released by purchaser unless made IN
7. Delivery.
WRITING WITHIN 30 DAYS AFTER ARRIVAL OF MATERIAL. If
The estimated shipping date is based on production time
material is delivered short, damaged or
required to process the order commencing with the date
missing pieces due to carrier mishandling, receiver must
the order is received by us. If it is necessary to revise the
make note on the delivery receipt in order to receive
design, specification or conditions of sale, the shipping date
replacement material. Under no circumstances shall
shall be automatically extended by the period of time
purchaser install damaged or defective material if claims
required to actually achieve mutually agreed upon
are to be made.
corrections or adjustments of the design, specification or
conditions of sale. 12. Liability for Misuse.
We shall not be liable for damages to property or persons
8. Damage or Loss in Transit.
due to improper installation of our material or through attempts
Delivery of goods to a carrier at our plant or other shipping
to utilize the material under conditions which
point shall constitute delivery to purchaser regardless of
exceed the designed capabilities. Purchaser agrees to
freight payment. All risk of loss or damage in transit shall
indemnify and hold us harmless from any and all claims,
pass to purchaser at that time. Purchaser shall make claims
liabilities, damages, costs and expenses asserted against us
for loss or damage to goods in transit against the carrier.
or incurred by us because of injuries to persons or damages
We will assist purchaser in securing satisfactory adjustment
to property resulting from the improper installation or
of such claims, however; if material is delivered short,
misuse of the material.
damaged or missing pieces due to carrier mishandling,

PHP SYSTEMS AND DESIGN • 800.797.6585 119