Podcast
Questions and Answers
What is one method used to support flat roofs?
What is one method used to support flat roofs?
Which material is NOT typically mentioned as supporting flat roofs?
Which material is NOT typically mentioned as supporting flat roofs?
How do wooden joists function in a roof system?
How do wooden joists function in a roof system?
What happens to traditional wood joists when exposed to fire?
What happens to traditional wood joists when exposed to fire?
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Which statement about roof support systems is true?
Which statement about roof support systems is true?
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Study Notes
Roof Support Systems Overview
- Identification of roof support types and materials is crucial for firefighter safety and tactical response.
- Roof support systems exhibit varied behaviors under fire and potential collapse scenarios.
Flat Roof Support Systems
- Flat roofs are typically supported by open-web steel joists or steel beams, providing a robust framework.
- The most basic flat roof support system utilizes ordinary wood joists, resting on load-bearing walls.
- Wood joists act as beams, carrying the weight of the roof deck similarly to how floor beams support a flooring system.
- Solid or laminated beams and columns are often integrated to bolster wood roof joists.
- Traditional wood-joisted roofs consist of solid wood joists which are effective but may gradually lose structural integrity as they burn.
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Description
Identify types of roof support systems, materials used in their construction, and their behavior in fire and collapse conditions.
