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Technical Drafting 10
Quarter 2, Prepare Plan Using CAD
First Edition, 2020
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Published by the Department of Education Division of Pasig City
Development Team of the Self-Learning Module
Writer : Eduardo E. Ronsairo
Jose M. Bagayana (Technical)
Editor/s :
Reviewers : Virgilio R. Cestina Jr. (Validator),
Levan A. Mendoza (Technical)
Illustrator : Edison P. Clet, Eduardo E. Ronsairo
Layout Artist : Eduardo E. Ronsairo
Management Team : Ma. Evalou Concepcion A. Agustin
Management Team: Ma. Evalou Concepcion A. Agustin
OIC-Schools Division Superintendent
Dr. Aurelio G. Alfonso
OIC-Assistant Schools Division Superintendent
Dr. Victor Javeña
OIC – Chief Curriculum Implementation Division
Wilma Q. Del Rosario
Division EPS In Charge of LRMDS
Education Program Supervisors:
Librada L. Agon EdD (EPP/TLE/TVL/TVE)
Liza A. Alvarez (Science/STEM/SSP)
Bernard R. Balitao (AP/HUMSS)
Joselito E. Calios (English/SPFL/GAS)
Norlyn D. Conde EdD (MAPEH/SPA/SPS/HOPE/A&D/Sports)
Wilma Q. Del Rosario (LRMS/ADM)
Ma. Teresita E. Herrera EdD (Filipino/GAS/Piling Larang)
Perlita M. Ignacio PhD (EsP)
Dulce O. Santos PhD (Kindergarten/MTB-MLE)
Teresita P. Tagulao EdD (Mathematics/ABM)
Printed in the Philippines by Department of Education – Schools
Division of Pasig City
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Quarter 2
MODULE 11
DRAFT ROOF PLAN
Writers:
Eduardo E. Ronsairo
Jose M. Bagayana (Technical)
Validator:
Virgilio R. Cestina Jr.
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Introductory Message
For the facilitator:
Welcome to the TLE 10 – Technical Drafting Module on Preparing
Plan Using CAD!
This Self-Learning Module was collaboratively designed, developed and
reviewed by educators from the Schools Division Office of Pasig City headed
by its Officer-in-Charge Schools Division Superintendent, Ma. Evalou
Concepcion A. Agustin, in partnership with the City Government of Pasig
through its mayor, Honorable Victor Ma. Regis N. Sotto. The writers utilized
the standards set by the K to 12 Curriculum using the Most Essential
Learning Competencies (MELC) in developing this instructional resource.
This learning material hopes to engage the learners in guided and
independent learning activities at their own pace and time. Further, this also
aims to help learners acquire the needed 21st century skills especially the 5
Cs, namely: Communication, Collaboration, Creativity, Critical Thinking, and
Character while taking into consideration their needs and circumstances.
In addition to the material in the main text, you will also see this box
in the body of the module:
Notes to the Teacher
This contains helpful tips or strategies that
will help you in guiding the learners.
As a facilitator you are expected to orient the learners on how to use
this module. You also need to keep track of the learners' progress while
allowing them to manage their own learning. Moreover, you are expected to
encourage and assist the learners as they do the tasks included in the module.
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For the learner:
Welcome to the TLE 10 – Technical Drafting Module on Preparing
Plan Using CAD!
This module was designed to provide you with fun and meaningful
opportunities for guided and independent learning at your own pace and time.
You will be enabled to process the contents of the learning material while
being an active learner.
This module has the following parts and corresponding icons:
Expectations - This points to the set of knowledge and
skills that you will learn after completing the module.
Pretest - This measures your prior knowledge about the
lesson at hand.
Recap - This part of the module provides a review of
concepts and skills that you already know about a previous
lesson.
Lesson - This section discusses the topic in the module.
Activities - This is a set of activities that you need to
perform.
Wrap-Up - This section summarizes the concepts and
application of the lesson.
Valuing - This part integrates a desirable moral value in
the lesson.
Posttest - This measures how much you have learned
from the entire module.
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Upon completion of this lesson, you are expected to:
describe the characteristics of the different types of roof;
arrange the steps in drawing roof plan; and
appreciate the importance of roof.
A. Directions: Read each sentences carefully and answer the questions. Write
the letter that corresponds to the best answer on the blank.
______ 1. It shows the outline of the roof and the major object lines indicating ridges,
valleys, hips and openings.
A. Overhang C. Roof plan
B. Roof D. Valley
______ 2. What do you call to the top covering of the uppermost part of a building or
shelter which provide protection from animals and weather, rain or snow,
heat, wind and sunlight?
A. Overhang C. Roof plan
B. Roof D. Valley
______ 3. What do you call to the horizontal distance that a roof projects beyond a
Wall?
A. Overhang C. Ridge cap
B. Ridge D. Valley
______ 4. It is the top edge of the roof where rafters meet.
A. Overhang C. Ridge cap
B. Ridge D. Valley
______ 5. This is a wood or metal cap used for roofing at the ridge.
A. Overhang C. Ridge cap
B. Ridge D. Valley
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Directions: Kindly read each item carefully and draw a check mark (/) on the column
that corresponds to your answer.
A Not
Skills A lot
little much
I can describe the characteristics of the different
features used in drafting ceiling plan.
I identify the step by step procedure used in drafting
ceiling plan.
I appreciate the importance of ceiling in a house.
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LESSON
LO2 PREPARE PLAN USING CAD
LO2.1 SET UP DRAWINGS ACCORDING TO STANDARD DRAWING SCALE AND
PAPER SIZE
LO2.1.11 DRAFT ROOF PLAN
This lesson is created to help you prepare an AutoCAD layout of a good roof plan
design using the same floor plan made in the preceding lessons.
ROOF is the top covering of the uppermost part of a building or shelter which provide
protection from animals and weather, rain or snow, heat, wind and sunlight. It is the
external upper covering of a house or building. It shows the size, shape and the type
of materials that should be used in the roofing system.
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BASIC TYPES OF ROOFS:
Roof styles that are commonly used in the building construction are of different
types. Some of them are:
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TYPES OF ROOFS:
1. GABLE ROOF
A gable roof is consists of two roof sections sloping in opposite directions in such a
way that the highest horizontal edges meet to form the ridge.
2. HIP ROOFS
A Hip roof is a type of roof where all sides slope downwards to the walls. They
commonly are used when eave-line protection is desired around the entire perimeter
of the building.
3. FLAT ROOFS
A flat roof is a roof structure which is almost level in contrast to the many types of
sloped roofs.
4. DORMER ROOF
A dormer roof is a roof structure often containing a window that projects vertically
beyond the plane of a pitched roof.
5. LEAN-TO-ROOF
Defined as a single slope roof with its upper edge adjoining a wall or a building. It is
a type of simple structure originally added to an existing building.
6. SHED TYPE ROOFS
It is a flat roof slanting in one direction. They may be used effectively when two levels
exist where additional light is needed.
7. GAMBREL ROOF
It is a roof with two slopes on each sides with the lower slope much steeper than
the upper.
8. DOME ROOF
Dome- is a hemispherical roof form.
9. BUTTERFLY ROOF
(Sometimes called V roof) is a form of roof characterized by an inversion of a standard
roof form, with two surfaces sloping down from opposing edges to a valley near the
middle of the roof.
10. MANSARD ROOF
It is a four-sided gambrel-style hip roof characterized by two slopes on each of its
sides with the lower slope, punctured by dormer windows at a steeper angle than the
upper.
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TECHNICAL TERMS ENCOUNTERED IN DRAFTING ROOF PLANS
Eave - is a part of a roof that projects over a wall.
Fascia - is a surface finish material used to cover another surface.
Overhang - is the horizontal distance that a roof projects beyond a wall.
Ridge - is the top edge of the roof where rafters meet.
Ridge cap - is a wood or metal cap used for roofing at the ridge.
Valley - is the internal angle formed by two slopes of a roof.
Below is the floor plan made in the previous lesson showing the roof lines made of
hidden lines.
Figure 1: Floor plan showing roof lines.
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A roof plan is one showing the outline of the roof and the major object lines
indicating ridges, valleys, hips and openings. The roof plan is not a framing plan, but
a 2D plan view of the roof.
Figure 2: Roof Plan.
SIMPLE STEPS IN MAKING THE ROOF PLAN in AUTOCAD
1. Set the Roof layer to current;
2. Change the properties of all roof lines (hidden lines - see figure #1) to
continuous lines;
3. Offset the roof line perimeter to 0.20 meter to create the space for gutter;
4. Trim the excess diagonal lines (ridges) using the gutter lines as boundaries;
5. Offset these diagonal lines (ridges) at 0.15 both sides to crate the ridge cap;
6. Create roof hatch using ANSI34 to create a rib-type effect roofing following the
arrow for the slope direction;
7. Locate the position of downspout symbols (DS) using small circle.
8. Label the roof plan.
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A. Directions: Identify the different roof types below. Write your answer on the
blank provided.
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B. Directions: Arrange the steps in making a simple roof plan in its proper order
using letters A-H. Write your answer on the blank provided.
______ 1. Label the roof plan.
______ 2. Offset these diagonal lines (ridges) at 0.15 both sides to crate the ridge
cap;
______ 3. Create roof hatch using ANSI34 to create a rib-type effect roofing
following the arrow for the slope direction;
______ 4. Locate the position of downspout symbols (DS) using small circle.
______ 5. Change the properties of all roof lines (hidden lines - see figure #1) to
continuous lines;
______ 6. Offset the roof perimeter to 0.20 meter to create the space for gutter;
______ 7. Trim the excess diagonal lines (ridges) using the gutter lines as
boundaries;
______ 8. Set the Roof layer to current;
What are the importance and uses of Roof?
__________________________________________________________________________________
__________________________________________________________________________________
__________________________________________________________________________________
Enumerate the different types of roof.
__________________________________________________________________________________
__________________________________________________________________________________
__________________________________________________________________________________
Roof is very important element of our house, it shelters us through rains and sunlight
and make us feel safe from intruders during night time. As a student, who do you
consider as your protector and gives you a feeling of security? Support your answer.
__________________________________________________________________________________
__________________________________________________________________________________
__________________________________________________________________________________
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A. Directions: Read each sentence carefully and identify what is described in
each statement. Write only the letter that corresponds to the best answer.
______ 1. It is a four-sided gambrel-style hip roof characterized by two slopes on each
of its sides with the lower slope, punctured by dormer windows at a steeper
angle than the upper.
A. Flat roof B. Gable roof C. Lean-to roof D. Mansard roof
______ 2. What do you call to a roof structure which is almost level in contrast to the
many types of sloped roofs?
A. Flat roof B. Gable roof C. Lean-to roof D. Mansard roof
______ 3. This roof is consists of two roof sections sloping in opposite directions in
such a way that the highest horizontal edges meet to form the ridge.
A. Flat roof B. Gable roof C. Lean-to roof D. Mansard roof
______ 4. Defined as a single slope roof with its upper edge adjoining a wall or a
building.
A. Flat roof B. Gable roof C. Lean-to roof D. Mansard roof
______ 5. Which type of roof below has all its 4 sides slope downwards to the walls?
A. Dome roof B. Dormer roof C. Gambrel roof D. Hip roof
______ 6. It is famous for its hemispherical roof form.
A. Dome roof B. Dormer roof C. Gambrel roof D. Hip roof
______ 7. This roof structure often containing a window that projects vertically
beyond the plane of a pitched roof.
A. Dome roof B. Dormer roof C. Gambrel roof D. Hip roof
______ 8. It is a roof with two slopes on each sides with the lower slope much steeper
than the upper.
A. Dome roof B. Dormer roof C. Gambrel roof D. Hip roof
______ 9. Sometimes called V roof, characterized by an inversion of a standard roof
form with two surfaces sloping down from opposing edges.
A. Butterfly roof B. Dormer roof C. Gambrel roof D. Shed roof
______ 10. It is a flat roof slanting in one direction. They may be used effectively when
two levels exist where additional light is needed.
A. Butterfly roof B. Dormer roof C. Gambrel roof D. Shed roof
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KEY TO CORRECTION
REFERENCES:
Arriola C., Bermas D., Milambiling O., Guevarra Jr. V., Technology &
Livelihood Education ICT– Technical Drafting 10: Learner’s Material. Deped-
IMCS, 2013
AutoCAD 2018
