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2024 International Building Code
Chapter 15: Roof Assemblies And Rooftop Structures

Quiz: 2024 International Building Code Chapter 15: Roof Assemblies And Rooftop Structures

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1. Which of the following aspects is NOT primarily governed by Chapter 15 of the IBC regarding roof assemblies?

Design of roof coverings
Materials for roof decks
Construction of rooftop structures
Installation of fire suppression systems

2. Which code is referenced for the design and installation of roof drainage systems, in addition to IBC Section 1611?

International Mechanical Code
International Fire Code
International Plumbing Code
International Energy Conservation Code

3. When are secondary (emergency overflow) roof drains or scuppers required on a roof?

Only for roofs with a slope less than 1/4:12
When the roof perimeter construction would entrap water if primary drains fail
For all roofs on buildings greater than two stories
When required by the local fire marshal

4. What material requirements apply to gutters and leaders placed on the outside of a Group B building?

Any approved combustible material is permitted
Shall be noncombustible material or Schedule 40 plastic pipe
Must be corrosion-resistant metal only
Plastic pipe is prohibited in all cases

5. According to IBC Chapter 15, how must roof coverings be designed and installed?

Designed per manufacturer's instructions, installed per code
Designed per code, installed per code and manufacturer's instructions
Designed by a registered design professional only, installed per code
Installed as per code, design is at contractor's discretion

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