1. Residential Roof Types
Civil Engineering and Architecture®
Unit 2 – Lesson 2.1 – Building Design and Construction
Roof Shapes
Roofs protect buildings and occupants from wind, rain, cold, sun, heat, dust, etc.
Roofs come in many shapes.
Pitched roofs shed rainfall away from the structure. Flat roofs require installation of drains to remove rain and snow melt from the structure.
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2. Residential Roof Types
Civil Engineering and Architecture
Unit 2 – Lesson 2.1 – Building Design and Construction
Roof Types
Shed
Gable
Hip
Gable with Dormer
Gable & Valley
Hip & Valley
Flat
Gambrel
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3. Common Residential Roofing Materials
Residential Roof Types
Civil Engineering and Architecture
Unit 2 – Lesson 2.1 – Building Design and Construction
Common Residential Roofing Materials
Standing Metal Seam
Clay/Cement Tiles
Asphalt Shingles
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Wood/Cedar
Slate
Project Lead The Way, Inc.
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4. Residential Roof Types
Civil Engineering and Architecture
Unit 2 – Lesson 2.1 – Building Design and Construction
Roof Pitch
Roof pitch determined by rise/run
Run 12 in.
Rise 7 in.
Example:
A 7/12 (pronounced “seven twelve”) pitch means that the roof rises 7 in. for every 12 in. horizontally.
Project Lead The Way, Inc.
Copyright 2010

5. Roofs as Sustainable Space
Residential Roof Types
Civil Engineering and Architecture®
Unit 2 – Lesson 2.1 – Building Design and Construction
Roofs as Sustainable Space
Natural light creates a pleasant space for occupants and requires less energy for lighting.
Fewer light fixtures are required when using the light from the sun. One way to provide more natural light is by using skylights.
Architects can receive LEED credits when reducing energy used by buildings.
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Copyright 2010

6. Energy Star Roof Systems
Residential Roof Types
Civil Engineering and Architecture
Unit 2 – Lesson 2.1 – Building Design and Construction
Energy Star Roof Systems
Energy collected from the sun can be used in the structure.
Reflective roofs reduce cooling energy costs.
Project Lead The Way, Inc.
Copyright 2010

7. Residential Roof Types
Civil Engineering and Architecture
Unit 2 – Lesson 2.1 – Building Design and Construction
Roof Trusses
Courtesy Isle of Palms, SC Recreation Department
A roof truss is a simple assembly of members forming a rigid framework of triangular shapes.
Courtesy Leslie Eaves
Project Lead The Way, Inc.
Copyright 2010

8. Residential Roof Types
Civil Engineering and Architecture
Unit 2 – Lesson 2.1 – Building Design and Construction
Rafters
Rafters are an alternative to trusses for roof support.
Rafters are roof beams that slope from the ridge beam to the top of the wall.
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Project Lead The Way, Inc.
Copyright 2010

9. Residential Roof Types
Civil Engineering and Architecture
Unit 2 – Lesson 2.1 – Building Design and Construction
Pitched Roofs
Plywood sheathing and shingles are used on pitched roofs.
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Project Lead The Way, Inc.
Copyright 2010

10. Residential Roof Types
Civil Engineering and Architecture
Unit 2 – Lesson 2.1 – Building Design and Construction
Residential Roof Types
Roof Shapes
Roof Types
Roofs in Architecture
Roofing Materials
Roofs as Sustainable Space
Energy Star Roof Systems
Pitched Roofs
Roof Trusses
Roof Rafters
Roof Pitch
Project Lead The Way, Inc.
Copyright 2010

11. Residential Roof Types
Civil Engineering and Architecture®
Unit 2 – Lesson 2.1 – Building Design and Construction
Identify the Roof Type
Flat
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Project Lead The Way, Inc.
Copyright 2010

12. Residential Roof Types
Civil Engineering and Architecture®
Unit 2 – Lesson 2.1 – Building Design and Construction
Identify the Roof Type
Shed
Project Lead The Way, Inc.
Copyright 2010

13. Residential Roof Types
Civil Engineering and Architecture®
Unit 2 – Lesson 2.1 – Building Design and Construction
Identify the Roof Type
Gable
Project Lead The Way, Inc.
Copyright 2010

14. Residential Roof Types
Civil Engineering and Architecture®
Unit 2 – Lesson 2.1 – Building Design and Construction
Identify the Roof Type
Hip
Project Lead The Way, Inc.
Copyright 2010

15. Residential Roof Types
Civil Engineering and Architecture®
Unit 2 – Lesson 2.1 – Building Design and Construction
Identify the Roof Type
Gable and valleys with dormers
Project Lead The Way, Inc.
Copyright 2010

16. Residential Roof Types
Civil Engineering and Architecture®
Unit 2 – Lesson 2.1 – Building Design and Construction
Identify the Roof Type
gambrel
Project Lead The Way, Inc.
Copyright 2010