Podcast
Questions and Answers
What makes it difficult to determine the extent of overhead fires in roofs?
What makes it difficult to determine the extent of overhead fires in roofs?
- Ventilation work on roofs
- Roofs are designed to support lighter live loads
- Loads added to roofs over time
- Inherent concealed spaces between the ceiling and roof deck (correct)
Why are roofs not as strong as floors?
Why are roofs not as strong as floors?
- They support more dead loads
- They support lighter live loads (correct)
- They are designed to handle dynamic loads
- They have inherent concealed spaces
What safety issue arises from loads being added to roofs for which they were not designed?
What safety issue arises from loads being added to roofs for which they were not designed?
- Difficulty in ventilating heat from the structure
- Structural instability due to added loads (correct)
- Compromised integrity of the roof deck
- Increased risk of overhead fires
Why can it be difficult for firefighters to determine the extent of fire in a roof?
Why can it be difficult for firefighters to determine the extent of fire in a roof?
What is the slope range for low slope roofs?
What is the slope range for low slope roofs?
Which type of roof presents a major hazard to firefighters due to steepness and lack of secure footing?
Which type of roof presents a major hazard to firefighters due to steepness and lack of secure footing?
What determines the design of pitched roofs?
What determines the design of pitched roofs?
What type of roof slopes in four directions and has a degree of slope like a gable roof?
What type of roof slopes in four directions and has a degree of slope like a gable roof?
Which type of roof has a break in the slope of the roof on all four sides, creating a concealed space for fire travel?
Which type of roof has a break in the slope of the roof on all four sides, creating a concealed space for fire travel?
What type of roof is used to provide light and ventilation, with a raised central section containing openable windows?
What type of roof is used to provide light and ventilation, with a raised central section containing openable windows?
What is the purpose of a dormer in buildings with pitched roofs?
What is the purpose of a dormer in buildings with pitched roofs?
What type of roof uses inverted trusses and creates a concealed space between the ceiling and the roof deck?
What type of roof uses inverted trusses and creates a concealed space between the ceiling and the roof deck?
Which type of roof can fail quickly in a fire, depending on fuel load?
Which type of roof can fail quickly in a fire, depending on fuel load?
What is omitted in a type I structure from roof supports when the roof is located more than 20 feet above the floor in an assembly occupancy?
What is omitted in a type I structure from roof supports when the roof is located more than 20 feet above the floor in an assembly occupancy?
What are the conventional framing components for roofs?
What are the conventional framing components for roofs?
What is required if an architect wants to leave the underside of the roof exposed without joists?
What is required if an architect wants to leave the underside of the roof exposed without joists?
Which type of truss is most commonly used for pitched roofs?
Which type of truss is most commonly used for pitched roofs?
What material is frequently used for both the deck and the exterior roof covering in roof construction?
What material is frequently used for both the deck and the exterior roof covering in roof construction?
What is the range of gauge for corrugated steel used for decking?
What is the range of gauge for corrugated steel used for decking?
What is the usual thickness of wood panel decking on supports 24 inches from center?
What is the usual thickness of wood panel decking on supports 24 inches from center?
Why are the same structural systems for the roof and the floors used in a multi-story building?
Why are the same structural systems for the roof and the floors used in a multi-story building?
What is the primary concern with encountering layered roofs during firefighting operations?
What is the primary concern with encountering layered roofs during firefighting operations?
What is the purpose of a vapor barrier in a flat roof assembly?
What is the purpose of a vapor barrier in a flat roof assembly?
Which type of membrane uses several overlapping layers of roofing felt saturated with a bituminous material?
Which type of membrane uses several overlapping layers of roofing felt saturated with a bituminous material?
What is the function of thermal insulation in a roof assembly?
What is the function of thermal insulation in a roof assembly?
In what way is a fluid-applied membrane different from other types of roofing membranes?
In what way is a fluid-applied membrane different from other types of roofing membranes?
Why are wood shingles prohibited in many jurisdictions?
Why are wood shingles prohibited in many jurisdictions?
What is the primary advantage of using small-sized shingles and tiles on a roof?
What is the primary advantage of using small-sized shingles and tiles on a roof?
What is the life expectancy of slate as a roofing material?
What is the life expectancy of slate as a roofing material?
Which material is frequently made to look like clay, slate, or wood for roofing purposes?
Which material is frequently made to look like clay, slate, or wood for roofing purposes?
What operational problem can arise with clay, slate, and cement tiles during a fire?
What operational problem can arise with clay, slate, and cement tiles during a fire?
What test procedures are materials subject to in order to be a third party listed product?
What test procedures are materials subject to in order to be a third party listed product?
What are the three classifications based on the severity of fire a material can withstand?
What are the three classifications based on the severity of fire a material can withstand?
What are the reasons rain roofs may be installed for?
What are the reasons rain roofs may be installed for?
What is a potential hazard for firefighters when encountering rain roofs?
What is a potential hazard for firefighters when encountering rain roofs?
What is a characteristic of a photovoltaic system?
What is a characteristic of a photovoltaic system?
What parameters do codes and authorities add for solar panels on buildings?
What parameters do codes and authorities add for solar panels on buildings?
What is a potential danger related to compromised solar systems on buildings?
What is a potential danger related to compromised solar systems on buildings?
What is the primary hazard of vegetative roofs if not properly hydrated or if fertilizer is not stored properly?
What is the primary hazard of vegetative roofs if not properly hydrated or if fertilizer is not stored properly?
What is the range of dead load that a rooftop garden can constitute on the roof structural system?
What is the range of dead load that a rooftop garden can constitute on the roof structural system?
What are some benefits of green roofs?
What are some benefits of green roofs?
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