6 CHAPTER

i
ROOFING
&l
MATERIALS
GALVANIZED IRON SHEET
Tt» most common roofing
ykncmrn as G.l. material is the galvanized
*
she poP
corTugated Plain sheet is used sheet. G.l. sheet is
for either
iron
plain
downsP01 ndge, hip and valley rollroofing, gutter, flashing,
or
commercial size is 90 x 240 centimeters. long
Plain sheet standard
.
Corrugated galvanized iron
sheet on the other hand,
widely used for roofing and sidings is
having standard width of 80
centimeters with varying length from 150 to 360
consecutive intervals of 30 centimeters. Long span centimeters at
corrugated
sheets are also available on special order.

Corrugated O. I. Roof Sheet

mm r

FIQURE f t STANDARD CORRUGATED

.
G L SHEET

in terms
The thickness of galvanized iron sheet is measuredthinner as
Gauge Number from 14 to 30. The sheet becomes
larger . Gauge 26 is the most
Peuge number becomes and gauge 24
and various tin works
extensively used for roofing
® specified for gutters and valley rolls
20?
 RUCTIO N ESTIMATE
SIMPLIFIED CONST
difference In thickness betweefl
distinguish the
30 is so difficult even %
How to 14 to
ive gauges from
consecutcaliper
aid of a
expressed in terms of hunn
Gauge means
thickness one could be certain
only way by which is by weight
an inch and the of the sheet m6asur
right thickness various weight
is buying the to present the W T of G.|
prepared
Table 6- 1 was to its length and gauge number
sheet according

AND F EET
LENGTH IN METERS
2.40i 2.70 3.00 3.60
1.51D 1.813 2.10i
Gaucte Thk
No. cm.
* 5 ft 6 ft 7 ft. 8 ft 9 ft. 10 ft. 12 ft.

40.25 44.72 53.66

14 .203 22.315 26.82} 31.30l 35.78
32.40 36.45 40.50 48.60
15 . 180 20.2J5 24.3CI 28.35
36.27 43.52
16 .163 IBMl 27.76i 25.39 29.02 32.64
32.86 39.43
17 .147 16.431 19.72 2300 26.29 29.58
29.45 35.34
18 .132 14.73 17.67 20.62 23.56 26.51
19 .117 13.03 15.63 18.24 20.84 23.45 26.05 31.27
20 .102 11.32 13.58 15.85 18.11 20.38 22.64 27.17
21 .094 10.43 12.52 14.60 16.69 18.78 20.86 25.03
22 .086 9.52 11.54 13.46 15.38 17.31 19.23 23.08
23 .079 8.73 10.47 1222 13.96 15.71 17.45 20.94
24 .071 7.91 9.49 11.07 12.66 14.24 15.82 18.29
25 .064 7.03 8.43 9.84 11.24 12.65 14.05 16.86
26 .056 6.19 7.43 8.66 9.90 11.14 12.38 14.86
27 051 5.76 6.91 8.06 9.22 10.37 11.52 13.82
28 j048 !5.33 6.39 7.46 8.052 9.59 10.65 12.78
29
30
01.43
0.41
- 1.90
A1.46
5.88 6.86 7.84 8.82 9.80 11.76
5.37
j
6.27 7.16 8.06 8.95 10.74

204
 ROOFING MATERIALS
eminent :

.
1 Verify the plan if the side lapping is 1-1/a or 2- Va
corrugations.
-
2 If it is 1 1/2 corrugations, the effective width covering per
sheet is .70 meters or .60 meters for 2-1/2 corrugations
m

3 The standard end-lapping joint is from 25 to 30

centimeters long. This is important in determining the
length of the sheet to be used.
4 Spacing of the purlins should be proportionally adjusted
to the length of the G.l. sheets to avoid unnecessary
cutting or excessive overlapping. In short, the length of
the roof sheet governs the spacing distance of the purlins
For this purpose, refer to Table 6-2.
c A good roofing design minimizes end lapping joint.
Longer length of roofing sheet is preferred for economical
reasons.

Wtfr '
Purlins
<3.1. Sheets

End Lapping

2 1/2 Corr.

11/2 Corr.

Side Lapping
LAPPING OF G.l SHEETS
FIGURE -
62
205
 ,STRUCTI ON ESTIMATE

* ;IHfl> LXFtED COP

Covering
OF 0.1. ROOFING SHEETS
Purlins NtJ
M
Length Effective l " i Spacing
" 2» in Meter Pftr Sheet
pt . - Meter 1 Vi
60 60 14
70
5' - 1 50 70
60 75 14
6' - 1.80 70
60 60 18
r - 2.10 60 70 18
70
8 - 2.40 70
60 60
9' - 2.70 . 60 . 67 22
70
10' - 3.00 70 . 60 . 66
12 - 3.60 .

« ESTIMATING G I ROOF AND ITS ..

ACCESSORIES
along the gutter line.
1 Determine the length of the purlins
roof direction .
This distance is perpendicular with the
2 Divide this length by the effective width covering of one
G.l. sheet using either .70 for VA corrugations or .60 m.
for 2Vz corrugations. The result is the number of sheets
for one row.
3. Determine the length of the rafter or top chord . Choose
the right combination of roofing sheets that will satisfy this
length considering th§ 25 to 30 centimeters standard end
lapping .
4. Multiply the result found in step
- 2 by each length of
sheet combination as found in step 3.
-
5
'aits and
6

206
 ROOFING MATERIALS
find the number of plain G.l.
' •
gtfgp with the aid of
Table 6-4. sheets required for anchor
TABLE 6-3 QUANTITY OF Rnnc
INKILOQRAMS
Materials
G.l. Roof Nails
ii HII LPe»J<ilogram
G. l. Rivets 120
G.l. Washers 180
Lead Washers 126
Umbrella Nails 75
120

TABLE 64 SIZE AND QUANTITY OF STRAPS IN ONE PLAIN ft . SHEET

Size of Purlins Size of G. l. Strap Number of Strap

Inches in Inches in One Plain Sheet

x 3 - 1 x 9" 384
2* X 4 * 1’ x 10 342
2 x 5 1’ x 11’ 312
2" x 6" 1’ x 12’ 288

ILLUSTRATION 6-1
G.l. roof
From figure 6-3 find the number of corrugated specify 1-
side lapping
sheets and its accessories required if the
on a 2 x 3 purlins.
% corrugations with 30 cm. end lapping

Corr. G . l. Roofing
6.00

\
*. °
0

FIGURE 6-3
207
 s„ coNs cn .°
N STOUT ,
SOLUTION
Corrugated O.l. Sh»*
t
A

, RSJ M » M S,"J»|
1

--
Mt to
.
* 4
SSUSsheets one "row** *
i - i
in
1

14.00 = 20
. 70

2
SSRS 8®5!?'
corrugated G.l. sheet
3 order: 20 - 32 x 12
20 - 32" X 9'

B. Rivets
feet and 9 feet long roof
1. Refer to Table 6-2. For a 12
sheet, multiply:
For 12 ft. long : 20 x 26 = 520 pieces
For 9 ft. long : 20 x 22 = 440 pieces
Total rivets 960 pieces

2. Convert to kilograms. Refer to Table 6-3; divide:

-
960 = 5.3 say 5.5 kilograms
180

C. G.l. Washer

1. Double the number of rivets.

960 x 2 = 1,920 pieces.

* R« .*
T 6-3 U. u

ij§22 = 15.24 kilograms.

208
 ROOFING MATKRIAIA
0 Plain o.l. Strap on 2 a »» pur1ln,
Tolal number ot rival
R«,er * T,
»
* Moptacat
2. ° - ble 6 4 Uwng 2' x V p,lt1(
• n» oivtrta
.SfiJL " 2 5 places plain O I
364 tfcaeu

e u*ad Washers
Number of rivets is the same as the lead
washer * 360
-
2 Refer to Table 6 3. For lead washers, divide
960 * 12.8 say 13 kilograms
75

f . Summary of the materials

20 pcs. 32" x 12 ft. corrugated G . l . sheet
20 pcs. 32" x 9 corrugated G . l . sheet
5.5 kg. G.l rivets
15.5 kg. G.l. washecs
13.0 kg. Lead washers
2.5 pcs. Plain G.l. sheets

ILLUSTRATION 6-2
From the following figure, find the G .l . roof sheets and the
umbrella nails required adopting 2 1A side corrugations and 30
centimeters end lapping on a 2" x 3" purlins.

SOLUTION
.
A Corrugated G.I. Sheets
209
 slM« .NMCWBWTIWO
er ofroofs
*
Refer to Table 2 g
* %
1 Fmd the numbons divide
2 H comjQ«t»

mau n • 30 P1***
60

corr . Q , eoof<m

it 0c

FIGURE M

2. The length of rafter is 6 00 meters (20*) a combination of

3 60 m (12*) and 2 70 m (9 *) roof sheet Refer to Table
6- 5 , multiply each sheet length by the result of step- 1

30 pcs 32* x 12 and

30 pcs 32* x 9 corrugated roof sheets

3 Take note that this is only one side of the roof For the
other side , double the quantity
of the roof sheet
2 x 30 « 60 pieces
at 3 60 m. (12 *) long and
2 30
* - 60 pieces at 2 70 m (9 *) long

B. Umbrella Nails

andTffti*H roaf mber of umbrella nails for the 12 h 1

*
*beets Refer to Table 6 2 multiply
- .
210
 MAT, HUM

Tottl . . . 2'8«0 p|
iOtl

2 1 * 24 kilograms

ILLUSTRATION 6-3

leadwashare If the piinspeclfyK side' laJcomgailoT "* '

Corr . G . l . Roofing Uo

>
*
zr
3 0
°
*< 0 It
.

-
FIGURE t S

SOLUTION
.
A. Corrugated G.l Sheet
1. Determine the number of roof sheet in one row
along
the 12.90 m. gutter. Refer to Table 6 2, divide
. -
12.90 m. = 21.5 say 22 pieces
.60
roof .
This number is only for one side of the
211
 ® CONSW
"
0
** *
SWFUFtt
nunw"
** » .
,) 10 and and T G **
K\ 9'
'
8
, ' '

.
and
' on
c ) 12
« w "4 ,
I

order will b ®

2 x 22
, 44 pieces 32 - x 10' and

« 44 pieces 32* x 7
2x 2 2

lead Washers.
B. Roof Nails and
, Solve forthe number
of roof nails. Refer to Table 6 2,
-
roof sheet 44 x 22 = 966
For 3.00 m. (103 long
For 2.10 m. ( 73 long roof
sheet 44 x 18 Z92 _
Total roof nails 1,760

6 3. Divide:
2. Convert to kilograms. Refer to Table -

1.760 = 14.7 say 15 kilograms roof nails

120

1.760 = 23.5 say 24 kg. lead washers

75

ILLUSTRATION 6-4

,
From Figure 6-6, find the number of corrugated roof sheets,
ead washers, including the plain G.l. straps
-
required if the plan specify 2 1/2 side lap comjgations and .30
m. end lapping on a 2' x 4 purlins.

SOLUTION
212
 R OFIN MA
mi ,
l Rooting ShMtc 'AIJ

•mo ine
1. Find
'
the number of
« mn
0u er. Refer «oTable 9
, ,

fe
0
..
, r 2 A »onttlh,T.,V1800 m«t r,
*
* 3 plec
° *»
18 M

ROOF PLAN

12* 17

CROSS SECTION OF THE ROOF

FIGURE 04

js:r;.ss ,
n
long G.l sheets. Refer to Table 6- 5,

30 pieces of 32 x 12 feet and

30 pieces of 32 x 9 feet 9
on ,

213
 CONS TRUC TION ESTIMATE
slMrUntV
x 30 = 60 pcs . 12 » and
2
60 pcs. Bfl long
2x 30 *

4. Considering t hSnce hip is aT *

cutting can

§0 + 60
-
0f the °

120 pcs. x 5% * 6 pieces of 12'

-5:
45 and 10«, *

66 pcs. 32* x 12 feet and

5. Order
-
60 pcs. 32 x 9 feet tong

B. G.I. Rivets
-
1. Find the number of rivets. Refer to Table 6 2; multiply ;
For 12 ft. sheet; 60 x 26 * 1.560 pieces
For 9 ft. sheet 60 x 22 = 1.320 pieces
Total 2,860 pieces

2. Convert to kilograms. Refer to Table 6 3. -

2.880 = 16 kilograms
180
C. G.I. and Lead Washers

1 For G.l . washers, double the number of rivets:

=
2,880 x 2 5,760 pieces. Refer to Table 6 3; divide: -
AZ§Q * 45.7 say 46 kilograms
126

2. Lead Washer is the same number as

the rivets. ReW tc
-
Table 6 3; divide.

214
 ROOFING MATERIALS
2*|
fi 2 = 38.5 say 39 kilograms

P. plain G.l. Anchor Strap

-
1. Refer to Table 6 4. The size of G.l. strap on a 2" x 4"
purlins is 1' x 10 *.

2. Number of strap is 2,880 equal to the number of rivets

F *he urt er of P|ain sheet needed to produce the
'2
on anchor strap.
2,880 Refer to Table 6-4. Divide:

S80
342
= 8.42 say 9 pieces 36" x 8 ft. plain G.l. sheet.
3. Find the common wire nails to fasten the anchor strap.
2,880 x 3 nails per strap = 8,640 pieces

4. Convert to kilograms. One kilo of 4d , 32 mm c.w. nail is

approximately 695 pieces. Divide.
8640 = 12.43 say 12.5 kg. 4d c.w nail
695

Summary of the Materials

66 pieces 32" x 12 ft. corrugated G. l , sheet

60 pieces 32" x 9 ft. corrugated G . l . sheet
9 pieces 36" x 8 ft. plain G. l . sheet
16 kilograms G. l. rivets
39 kilograms G.l. washers
12.5 -
kilograms 4d (1 1/2") common
wire nails.

Comment:
p ®
The estimating procedure fora
-
that of the lean to or gable type r °fi.
° "f £ ' 9 the effective
nS jderjng
Qe

covering of one sheet as constant d

215
 . mvcoHmvcmovmm n

TL» .«» ~the roof sheets

" * .
3

SHEETS ON A 0WEN
TABLE e-e COMBINATION OF O-l* PCX *
RAFTER LENOTH
Length
mmhlnatlon of Roof Sheet
Rafter No. of Meters Feet
Length Sheet Maters 7ZT\ Motors

1 3.00 10
3 00
1 3.30 11
3.30
3.60 1 3.60 12’
7 and 2.10 7’
3.90 2 2.10 7’
2 240 8 and 2.10
4.20 2.40 8’
4.50 2 2.40 8* and
3.00 10* and 2.10 7’
4 80 2
3.00 10 and 2.40 8'
5.10 2
2 3.00 10' and 2.70 9’
5.40
5.70 2 3.00 10 and 3.00 10'
6.00 2 3.60 12 and 2.70 9’
6.30 2 3.60 12 and 3.00 10’
6 60 2 3.60 12 and 3.30 11*
6.90 2 3.60 12 and 3.60 12’

10' and 2.40 8’ and 2.40 8

7.20 3 3.00
750 3 3.00 10 and 3.00 10’ and 2.10 7’
7.80 3 3.00 10 and 3.00 10’ and 2.40 8'
8.10 3 3.60 12’ and 3.00 10’ and 2.10 7’
840 3 3.60 and 2.40 8'
12’ and 3.00 10’
8 70 3 3 60 12’ and 3.60 12’ and 2.10 7’
9 00 3 3.60 12’ and 2.40 8'
and 3.60 12’

216
 GUTTER, PI . ct
AT
**»AU,

which simply mean, £ °n in

tinsmith
,he
*de« %£££
part of the roof
accessories °m
Experienced

:as« tinsmith worv»

fssttr. flutter
strap to
.
r *; >: n
Estimating Procedures
1. Determine the total length of the gutter
in meters
2. Divide this length by 2.35
gutter required. (2.35 meter to find the number ot
is the effective length of
gutter) one
3. Find the total width of one gutter
based from the cross
section of the detailed plan.
4. The width of one plain G.l. sheet is .90 meters Divide
90 m. by the result of step 3 to find out how many
gutter could be made out from one plain G.l. sheet

5. The fractional value as extra cut will be reserved for

other smaller parts.
6. Divide the result of step 2 by the result of step 4. The
result is the required number of G.l. sheet.

217
4 1
ESTf
SIMPLIFIED CONSTR UCTION
6-S
ILLUSTRATION7 find the number
of p/a n G ,
6-
open gutter as illustrated
,
From Figure the
required to fabricate
Gutter
18 M.

10 M.

Gutter
ROOF PLAN
2.5 cm.

5.0 cm.

2.5
15 20 cm.

7.5 cm.

CROSS SECTION OF GUTTER

FIGURE 6-7

SOLUTION.
1. Find the total length of the roof gutter

Length = 2 ( 18.00) + 2 ( 10.00)

= 56.00 meters
2. Divide length by 2.35
m. the effective length of gutter
= 23.82 say 24 pieces

218
 3 . The total width of th„
cross section
. Q# Outer is s > *-
« nsrj «
67 5 extra
cut .
This 37.5 centimeters eym

rr
3
one plain sheet .
5 «» rc x£
.
9 couid be made out
from
| 4. O .
«r 24 - 90 (M -, , 2 40

Comment

ar.-rjK:ss -
This simply mean that only one gutter could be made out
s;
from one plain G.l . sheet with an excess cut of 37.5
centimeters. The 37.5 centimeters excess does not
necessarily mean to be considered as waste because there
are several parts in the tinsmith work that requires smaller
cut or dimensions such as flashing , and anchor straps.
PVc plastic materials are now in used as gutter and
downspout instead of the plain G . l . sheets. However , at this
early stage , the use of PVc plastic gutter have
not gained
to resist
satisfactory result and acceptance for its failure
.
warping caused by temperature changes

ILLUSTRATION 6-6

219
 MTIMATE
SIMP inED CONSTRUCTION
450 m
l .uffrr
moo
RtdO roll
( UMm

FloNnfl
2 5 cm
23 cm 5 cm

5 cm 15 cm

45 cm.
7 5 cm

FLASHING
,
R DGE ROLL

FIGURE 6 -8

SOLUTION
A . Gutter

1. Find the total length of the roof gutter = 20 meters (see,

figure 6-8 )

2. Divide by the effective length of one gutter. (Table 6-6)

20 00 m. = 8.5 say 9 pieces gutter

2.35

3. Total width of gutter is 45 centimeters. Divide width of

plain G.l. sheet by 45 centimeters.

_90_cm. = 2 pieces derived from one G . l . sheet .

45

220
 ROOFING MATERIALS
.
4 Divide the result of Step 2 by step
3.
= 4 5 My 5 pieces
T '
P ain G.l. sheet

0 Flushing
a

1. Find the total length of flashing: 4 x

4.50 m. = 18 m.
2. Divide by the length of one flashing. See
Table 6-6
= 7.8 say 8 pieces

3. Width of plain G.l. sheet divided by width of flashing.

90 cm = 2 pieces
45

4. Divide step 2 by step 3 to find the number of plain sheet

JL = 4 pieces
2

TABLE 6-6 ROOF ACCESSORIES

Item Effective Length in Meters

Gutter 2.35
Flashing 2.30
Ridge Roll 2.20
Valley Roll 2.30
Hipped Roll 2.20
Soldering Lead !4 (.25) bar per solder joint
Moriatic Acid 10 cc per soldering lead

c. Ridge Roll

1. Total length of the ridge roll is 10 meters. Divide by the

length of one ridge roll, see Table 6-6 .

221
/

220
can b6 made oiit <
many ridoe roll |
how
2 Detemilne . sheet
one plain G.l
o( p 8ln sheet 1
dtvidJ ?
by
width of ridge roll

90 cm = 2 f )CS
45 cm.

3.
5 = 2 25 pieces
2
Summary

5 pcs. 90 cm. x 240 cm. plain G.l sheet

Pnr Putter
FlasS Jcs 4 pcs. 90 x 240 cm. plain G.l shee , ,
Ridge Roll . 90 /
11 pcs Plain G s lee s
,
x 240 cm. plain G.l. sheet
Total *
D. Valley and Hipped Roll

The estimating procedure for valley and hipped roll is the

same as that of the gutter, flashing and ridge roll with the aid of
Table 6-6.

TABLE 6-7 CORRUGATED PLASTIC ROOF SHEET

Commercial Size Effective Width Covering

Corruaation
Size Meter 1 VS 2 VS
26 x 8 . 650x 2.40 . 46 m. .31 m
29’ x 8 725 x 2.40 . 53 m. . 38 m.

6-4 ASBESTOS ROOFING

Unlike galvanized iron
roofing sheet where accessories

222
 RO
°WNCMATERIALS
from gutter down to the smallest
out from the standard size ?
0f n 3
,
r s raps are made on site
roofing
flSbestos and parts
accessories '"
material is murh c
usedJlTP
to be
G 1 sheet, estimating
er because all the roof
valley rolls are all factory made
ready foMnslaHaf 96' h P
'
pifferent Kinds of Asbestos
Roofing
1. Standard corrugated sheet
2. 4-V Corrugated sheet
3 Placa Romana
4. Kanaletas
5. Tencor corrugated sheet
6. Ardex lightweight corrugated sheet
a. Standard Ardex
b. Super Ardex

Estimating Procedures:
a.) The number of corrugated asbestos roofing required is
determined by dividing the gutter length by the effective
width covering of one sheet.

b.) In finding the number of accessories such as flashing,

gutter, ridge, hip and valley roll, divide each total length
by the effective length of the accessories.

c.) Other parts such as ridge end cap, apron flashing, gutter
comer, down spout and fittings are found by direct
counting. They are all ready made according to factory
standard sizes.

ILLUSTRATION 6 7 -
Prom figure 6-9, find the standard asbestos roofing sheet
Including its accessories required.
A * Standard Corrugated Asbestos Sheet
223
1
joom
» no rn

, un i Hldd« roll
jtf oo m
OO rn
Gutter
Ho

ABBE8T08 CORRUGATED
SHEET
FIGURE M STANDARD

SOLUTION
Standard Sheet
the total length of the gutter: 2 x 26 - 52 00 meters
1. Find
2. Refer to Table 6 8 .
Divide 52.00 m . by the effective width
-
asbestos sheet
52.00 m. = 62 pieces standard
.838
Gutter
Total length of the ridge roll is = 26.00
m. Refer to Table
6-8, divide this length by the effective
length of one gutter

2 x 26.00 = 22.26 pieces.

2.336
Ridge Roll
Total length of the ridge is = 26.00 meters. Refer to Table
6-8 for ridge roll. Divide:

26.00 m. = 31.0 pcs. ridge roll.

.838

Flashing:
1. Find the total length of the flashing (see figure)

224
 ROOFING MATERIALS
3.00 m. x 4 sides
* 12.00 meters
2. Refer to Table 6- 8 , for outside
flashing, divide:
3 5 25 Say 6
1286 >>cs outside flashing.
Ridge End Cap

1. From Figure 6-9. By actual count , there are 2

cap. Order 2 pieces. ridge end

Summary of Materials
62 pcs. 1.20 x 3.00 Standard corrugated
sheet
23 pcs. standard gutter
31 pcs. standard ridge roll
6 pcs. standard flashing
2 pcs. standard ridge end cap

Technical Data For Estimating Asbestos Roofing

TABLE 6-8 STANDARD CORRUGATED SHEETS

Length 1.20 x 3.00 m.

End lapping: Below 20 degrees 0.30 m.
Above 20 degrees 0.15 m.
Effective width 0.838 m.
Ridge Roll effective length 0.838 m.
Gutter effective length . 2.336 m.
Outside flashing 2.286 m.
Hip roll 1.676 m.

838 m.
Lap

/ \/WW\ jA<

I
98 m.

SHEET
FIGURE 6-10 STANDARD CORRUGATED
 ESTIMATE
SIMPLIFIED CONSTRUCTION
Sheet
B.) 4-V Corrugated Asbestos
TECHNICAL DATA
TABLE . $ 4 4 -VCORRUQATCOSHEtrr
Standard Length
I 2 ,438 m 965 m
Effective width 965 m
Ridge Roll effective length length 2 286 m
Outside Flashing effective

1 00 m.

FIGURE 6-11 4-V CORRUGATED ASBESTOS SHEET

C.) Tencor
TABLE 6-10 TENCOR CORRUGATED SHEET TECHNICAL DATA

Standard length 2.44 m

Lapping . 15 or . 30 m
Effective Length 2.29 or 2 14 m.
Standard Width . 748 m
Effective Width 675 m .
Outside Flashing 1.50 to 3.00 m.
Minus Lapping 15 m .
Ridge Roll
. 953 m .

.67 m Lap
V WWV\
75 m.
'
*1

WE '12 TENC
* °
R CORRUGATED
SHEET
226
p. Kanaletas
"" TOO

Length
Effective width 7 315 m
Eaves flashing 885 m
Outside flashing effective i„
f * "
2 40 to 3 00

.177 m 177 m.
Lap
244 m

058 m

FIGURE 6-13 KANALETAS

£. Ardex
TABLE 6-12 ARDEX TECHNICAL DATA

Standard width .52 m. 1.05 m

Effective width 45 m. 97 m.
Nominal length . 75 to 3.15 m. 2.40 to 3.60 m
Ridge roll effective length .95 m. 95 m.
Outside flashing 1.50 to 2 00 1 50 to 3.00 m.
Side lapping .15 m. .15 m.

.45 m . 07 m ~

r\A/\AAAA>
Lap

FIGURE 6-14 ARDEX

097
 ESTIMATE
SIMPLIFIED CONSTRUCTION
E. Placa Roman#
TABLE Pt
>lE 6-13 PLA M
912 m.
Standard length 600 m.
Effective length 1 180 m.
Standard width 1.100 m.
Effective width 200 m.
End lap 080 m
Ridglrollflashing
effective length
effective length
1.100 m
2.286 m
Outside 1.100 m.
Ridge flashing effective length
length 1.100 m.
Eaves flashing effective

1.10 m

1.18 m.

FIGURE 6-15 PLACA ROMANA

6-5 COLORBOND KLIP-LOK

Colortwnd is a corrosion resistant zinc coated steel sheet
SKSySLES "* reMn9
"
1. Concealed fastening
2. Lock action rib design
3. Attractive fluted trays
4. Near flat roof slopes
5. Less suppoits-wider
6. spaced
Strong lightweight
7. steel
Custom cut long lengths

228
 I

27 mm
Me«
41 * " ***
Female Rib
Re
203 mm
203 mm

*06 mm Coverage
(427 mm )
Over !Wtofr
*
FIGURE 8-1« C0L0R80N0
KLP-LOK
TABLE 6-14 COLORBOND KUP LOR TECHMCAL DATA
Steel base thickness
Total coated thickness 0 60 mm
Weight per meter length of panel 0 63 mm
Weight per covered area 266 kg
6 00 M .
Length available up to 15 00 m_
Longer length special order up to 35.00 M
Overall width 427 m.
Effective width coverage 406 m

RECOMMENDED FASTENERS
(TWO FASTENERS REQUIRED PER CUP)

Support member Normal Fastening Fastenrg over tosUabon

Up to 100 mm ( )
*
Steel up to 3/32* No. 10-16 x 5/8" wafer «
No. 10-15 x 7 " (22 mm)
( 2.5 mm ) thick head self drtteig and wafer head set cf«ng
tapping screw and tapping screw

Steel 3/32" to 3/16 No. 10-24 x 5«" wafer «

No. 10-24 x 7 " (22 mm)
wafer head sekdr ng
25 - 5 mm thick head self < ng and
tapping screw** . and tapping screw *
Stealover 3/16" No. 10-24 x 5« wafer
«
No. 10-24 x 7 " (22 mm)
(5mm thick) head thread exiting hoieforNo 10-24 x 7«"
Water head sek drttng
screw Dr 4.5 mm.
* and tapping screw

229
 ESTIMATE
SIMPLIFIED CONSTRUCTION

Hardwood 2" x 9G(50 x 3 75 mm.

counter sunk haad G *
J- '
spiral nail or No. 10 2
x 1 * (25 mm) typa
wafer head self
1
drilling
)

1
sixes?10.12*
spiral nail or No.
(45 mm) type j 7
.-
wafer head self drilling
wood screw
wood screw.

Softwood No. 10 12 x 1 x' typ

- *

J
17 wafer head eelf drilling wood screw
drilling wood screw

6-6 BANAWE HORIZONTAL METAL TILE

TECHNICAL DATA
TABLE 6-15 BANAWE METAL TILE

Item Lenath in Meter

Nominal width .228 m.

Effective width coverage .204 m.
Length 12.19 m.
Minimum roof slope 15 degrees

18

20A w
CO e
rinfl
e«cCWC
«5
y \ *
113 22»
136 7 3
\ >N !** Min. Roof Inclination
23

FIGURE «-17 CROSS SECTION OF

BANAWE METAL TILE

230
 ROOFING MATERIALS

MARCELO ROOFING SYSTEM

TABLE 6 16 * MARCELO ROOFING SYSTEM TECHNICAL
DATA

Wi< 1.14 M.
rth 1.11 M.
coverage .95 M.
effective width coverage per sheet .92 sq. m.
effective Area per sheet first row 15 pcs. per sheet
Number of fastener 10 pcs. per sheet
Averse No. Hasteners per sheet 12 pcs. per sheet

1.35 m.

.
i
// >/.' A ; !
JMih .95 to 1.125 m. \

rv
/ 95 cm .

mi
.
« «« ***
« MORS
SYSTEM

,
t COLORBON » « ° 231
 TABLE
.- ..
SM UF
«**
(TION ESTIMATE
CU*TO*«
QPB Tf CHMCAL DATA
90 m
70 m
Nkxm»l **** AO#
1 35 m
Effw*v* Sp*o*l order

SSSssss 5*- 24 rn

Crtst Fastening to St**,

0.66 n».
QJSTOMO O

Postmen Up
9*V VJPPOrt

3 5
'
r roe* Pacieninn to Wn /vi

FIGURE 6-19 COLORBOND CUSTOM ORB

6-9 MILANO LONG SPAN STEEL BRICKS

TABLE 6 18 MELANO LONG SPAN TECHNICAL DATA
*

Steel base thickness No. 26 0 40 mm

Weight per square meter 4 53 kg
Effective coverage 0.67 M
Length up to 6. 00 M
Recommended roof slope 10 min.

232
 "OOmcMATE
38 cm 38 cm
43 0
1 v- 38 cm 7
' x *T
'• mm

A = 5 cm to 43 cm
depertdingupon the length of the top
tile

Fastened to supports through the

crest of the corrugations

1~
] fl cofTUQation side lap 2 1/2 corrugation side lap

poaition for intermediate * Nailing position for ridge and gutter line
* Nailing tile presses .
tile presses
FIGURE 6-20 MILANO LONG SPAN STEEL BRICKS

Notch and turn oown. «09« 01 RIDGE CAPPING

tupping batwaan rib * Fat tan at altarnata riba. Futtn at altamatc riba.
Turn up tray batwaan rib
*

Notch and turn down tdgt <

o
rib . capping batwaan rib .
Turn up tray batwaan * *
TRANSVERSE FASCIA CAPPING

1 1/8 m
( 29 mm )

(, 6 1 /8 m
30 mm)

30 In (760 mm
) COVER
T
1 1 2 3 /810
T (60 mrn)
*
TRIMDEX HI-TEN
FIGURE 6-21 COLORBOND
233
 SIMPLIFIED CONSTRUCTION ESTIMATE
6-10 COLORBOND TRIMDEX HI-TEN
TABLE 6-1» COLORBOND TRIMDEX HI-TEN TECHNICAL
DAT
Steel Base thickness
*
Weight per unit area
Weight per unit length
Nominal width
w
'0 sq in
83 m
Effective width coverage 076 m
Available length up to 15.0o m
Minimum slope single sheet 3 degrees
Minimum slope with end lap 5 degrees

Fasteners
1. For hardwood: Use Type 17 self drilling wood screw No
12 x 50 mm. Hexagonal head with neoprene washer .
2. For soft wood: Add 12 mm to length of screw.
3. There should be four fasteners per sheet at all supports.
4. For side lap fasteners, use Type S point self drilling screw
No. 10 x 16 mm. Hexagonal head with neoprene washers.
5. Tek self drilling screw to steel up to 4.5 mm. Thick use
No. 12 x 45 mm. Hexagonal head with neoprene washer.

6- 11 ASPHALT ROOF SHINGLE

Asphalt Roof shingle is manufactured by Certain Teed. It

comes into two varieties called certain teed 20 and extra tough
25. Certain Teed 20 carries the UL Wind Resistance and is
certified by ASTM to provide high tear resistance. Solar
activated, self sealing strips form a tight seal against driving
rain, snow and wind.

The XT 25 is considered extra resistant to wind stress to

help prevent tearing and blow off. It carries the UL 997 label so
it will resist winds up to 60 mph. Special sealant strips use the
suns heat for additional weatherproofing and extra aspha
makes it a heavier, more durable shingle compared to basic
three-tab strip shingles.

234
 ROOFING MATERIALS
pour fasteners are required per
op eac cu 0lrt and n shingle located S/e* above
*,
t
cteners are * * from
straight, with each side of the shingle
the head (tush to
• nle surface Fasteners
$h n 9 must
je into solid wood, plywoodbe ot sufficient* lengththeto
pe ess of the decking
*. whichever
eSS than V* and staple legs
decking •// or through the
is less Nail shanks
must
*
not are to be must never be less than 1*
. n resistant roofing 11 or 12 gauge barbed shank
,'
in
nails with 3/8" heads
flted staples with Use 18 gauge
1" nominal crown Staple crown mu
Z nC
pe Paraiiel horizontal tab edge
*
1 F0U ,*
BS en re
**
.15

wammmx : . , I'
30

.15
Half .
»
90
H*
FIGURE 6-22 ASPHALT ROOF SHINGLES
DATA
TABLE 6-20 ASPHALT SHINGLES TECHNICAL

Fiber glass composition 2001b.

Certain 25Teed 20 per square 225 - 230 lb.
XTTM per square 1/16*
Dimensional tolerance 0 30 m
Width 0.90 m.
Length 0.135 sq. m.
______
Effective coverage 3 sq. m.
One bundle covers

LUSTRATION 6-8 roof area .

meters total inclined of
A building has a 500 square Shingles. Find the number
Pten specify Asphalt Roof
*7 required
Angles
235
 SIMPLIFIED CONSTRUCTION KMH MAT
*

/
Roof AH* ' 900 /
// \
V
-
FIGURE 6 23 ROOF PLM

SOLUTION
1. Find the total area of the roof . Since the area was gJ /efi
refer to Technical specifications and divide the total ny/
area by the effective coverage per shingle.
500 = 3,703.7 pieces
0.135

2. Another solution is to divide the roof area by 3 square

meters to get the number of bundles of shingle required
500 = 166.6 say 167 bundles.
3

6-12 Upvc ROOFING SHEET

The Upvc roofing sheet is called IMACRoof suited to
corrosive conditions particularly industrial establishments ft has
,

an internal thermal conductivity equal to the expanded

polyurethane and polystyrene eliminating the use of insulating
materials. IMAC Roof sheets are made up of a particular blend
of thermoplastic resins and does not shatter easily unlike
ordinary plastic, asbestos and fiberglass roofing. The roof is
shockproof and hinders the dispersion of flames when in
contact with fire. They only carbonize without dripping of
breaking up

236
 R0
WNGMATERIAU
Tr *

CORRUGATED
01?«

RIB TYPE

FIGURE 6-24 PROFILES OF UPVC ROOFING SHEETS

TABLE 6-21 UPVC ROOF SHEET TECHNICAL DATA

Profile Ordinary corrugation & Rib-type

Effective width 0 91 m . for ordinary corrugation
Effective width 0.80 m. for the Rib-Type
Color White, beige, translucent
Thickness 1.00 mm., 1.50 mm., 2.00 mm & 2.50 mm
Length long span
Tensile strength 30 Mpa
2
Impact strength 27 KJ / m
Fire classification Class 1
Chemical resistance Excellent resistance to acids/bases/ salts
and numerous solvents.

-13 SPANFLEX
* Spanflex is a siding and ceiling system efficient substitute for
% wood panels. It presents an interesting and impressive
«nor and exterior profile for homes and offices. Spanflex is
your
»n all style range of designs and colors to suit
* hetic requirements .
237
 SIMPLIFIED CONSTRUCTION ESTIMATE
DATA
TABU «41 SPANPU* TtCHNICAL
0 40 to 0 GO mm
Mtalat thtckn*** Up to 0 00 m
Length
Nominal width 2 00 m / 1 10 m
Effective coverage 1 05 m / 1 10 m
Calling , elding and faetta
Application
Ivory, Forett green , mender ,
Colon *
Ocean blue, white , mahogany T;
Pina
Paint type Ragular polyeater
Faetenen Steal blind rlvate , Wafer ,
Wood CWN # 1

6 14 BRICK TILE ROOFING

-
Technical Data:
Description Weight in kllograme Number required

MarceMe Type (flat) 3.00 14 0 per aq m

OnduleType 4.00 15.0 per aq m
SR standard ridge 2.80 2 5 / aq m
Half MarceMe 2.00 1.0 / lr» m
-
JRT 1 3.00 130 / aq m
-
JRT 2 3.75 4.0 / aq m
--
JRT 3
JRT 4
3.20
3.20
1.0 / aq m
1.0 / aq m.

JRT 5
-
SRT 1
- 2.20
4.00
4.0 / aq m
13.0 / aq m.
-
SRT 2 2.20 1.0 / aq m
SRT L
SRT R
-- 2.25
2.25
1.0 / aq m
1.0 / aq m
.

--
JSR 1
J3R 2
2.00
3.00
1.0 / aq m
4.0 / aq m
-
SRT U 1 75 25.0 / aq m
-
SRT T 150 25 0 / aq m.

Problem Exercise
1 . From the following figure , using 2 % corrugations and 30
centimeters end lapping on a 2* x 4' purlins solve
the following:

238
a Number of corrugated GI „
b Num ber of rivets, wash

i sssssis taasr
1. Gutter and flushing
,h
! 8W»*
-
sheet for;

2. Ridge, hip and valley roll

3. Number of nails to fasten
kilograms. the anrhnr
°° *
-
anchor strap m
.
85.00 m. « 00 m
°
45

15.00 m
15.00 m.

5 cm. 0
5 cm. 5 15

U
15
5

5
20 45 cm.

GUTTER FLASHING RIDGE AND HIP ROLL

5 -5-
r

11

VALLEY ROLL

FIGURE 6-25

239
 ESTIMATE
SIMPLl reD CONSTRUCTION
*
, „
» «*«*» *«

A
26.00 m

12.00

B B

10.00

ROOF PLAN

/\SECTION A- A
2.00 1.50

SECTION B- B

FIGURE 6-26

240