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Commercial roof systems
- 1. Commercial Roof Systems We shape our buildings; thereafter they shape us. - Winston Churchill
- 3. Commercial Roof Shapes Shed Gable Hip Gable with Dormer Low-slope Gable & Valley Hip & Valley Gambrel Roofs for small commercial buildings can be similar to residential pitched roof shapes. Low-slope roofs (not completely flat) are common in large commercial construction.
- 5. Roof Coverings for Pitched Roofs Standing Metal Seam Clay/Cement Tiles Asphalt Shingles Wood/Cedar Slate Can be similar to residential construction Courtesy US Fish & Wildlife
Notas do Editor
- Commercial Roof Systems Civil Engineering and Architecture Unit 3 – Lesson 3.1 –Commercial Building Systems Project Lead The Way, Inc. Copyright 2010
- Civil Engineering and Architecture Unit 3 – Lesson 3.1 –Commercial Building Systems Project Lead The Way, Inc. Copyright 2010 Commercial Roof Systems
- Civil Engineering and Architecture Unit 3 – Lesson 3.1 –Commercial Building Systems Project Lead The Way, Inc. Copyright 2010 Commercial Roof Systems
- Roof covering – The outside layer; sheds water Underlayment – Sometimes called “felt” or “paper” and provides temporary protection during construction and a secondary weatherproofing layer during the life of the structure Roof Deck – The structural substrate that carries the roof loads to the roof framing, typically plywood or OSB (oriented strand board) Roof Framing – The structural support for the roof Civil Engineering and Architecture Unit 3 – Lesson 3.1 –Commercial Building Systems Project Lead The Way, Inc. Copyright 2010 Commercial Roof Systems
- Civil Engineering and Architecture Unit 3 – Lesson 3.1 –Commercial Building Systems Project Lead The Way, Inc. Copyright 2010 Commercial Roof Systems
- This photograph shows a commercial facility with light-gauge steel trusses on CMU load bearing walls. Civil Engineering and Architecture Unit 3 – Lesson 3.1 –Commercial Building Systems Project Lead The Way, Inc. Copyright 2010 Commercial Roof Systems
- Low-slope roofs are not flat. They are slightly sloped to roof drains so that water will not stand or “pond” on the roof. Because water moves more slowly on low-slope roofs, the roofing material must be highly resistant to infiltration. Civil Engineering and Architecture Unit 3 – Lesson 3.1 –Commercial Building Systems Project Lead The Way, Inc. Copyright 2010 Commercial Roof Systems
- Surfacing – Protects the weatherproofing and reinforcement Reinforcement – Adds strength, puncture resistance, and dimensional stability to the roofing, and is often combined with another layer Weatherproofing – One or more layers that keep the water from entering the building Roof decking – A material used to span across beams or joists to create the roof surface. The decking for low-slope roofs is often ribbed metal sheets but can be other material such as plywood. Civil Engineering and Architecture Unit 3 – Lesson 3.1 –Commercial Building Systems Project Lead The Way, Inc. Copyright 2010 Commercial Roof Systems
- Civil Engineering and Architecture Unit 3 – Lesson 3.1 –Commercial Building Systems Project Lead The Way, Inc. Copyright 2010 Commercial Roof Systems
- Single ply membranes include a single layer of roofing material. Civil Engineering and Architecture Unit 3 – Lesson 3.1 –Commercial Building Systems Project Lead The Way, Inc. Copyright 2010 Commercial Roof Systems
- The protective coating provides weatherproofing as well as protection from UV exposure and mechanical damage. Civil Engineering and Architecture Unit 3 – Lesson 3.1 –Commercial Building Systems Project Lead The Way, Inc. Copyright 2010 Commercial Roof Systems
- Civil Engineering and Architecture Unit 3 – Lesson 3.1 –Commercial Building Systems Project Lead The Way, Inc. Copyright 2010 Commercial Roof Systems
- Civil Engineering and Architecture Unit 3 – Lesson 3.1 –Commercial Building Systems Project Lead The Way, Inc. Copyright 2010 Commercial Roof Systems
- Civil Engineering and Architecture Unit 3 – Lesson 3.1 –Commercial Building Systems Project Lead The Way, Inc. Copyright 2010 Commercial Roof Systems