Questions and Answers
What is one method used to support flat roofs?
Which material is NOT typically mentioned as supporting flat roofs?
How do wooden joists function in a roof system?
What happens to traditional wood joists when exposed to fire?
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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.
