Podcast
Questions and Answers
The inverted roof was very common on many large area flat roofs built from the ____ to the ____
The inverted roof was very common on many large area flat roofs built from the ____ to the ____
1920s 1960s
By starting at one edge of the roof and cutting each successive row of supports __ in shorter you can achieve the desired pitch for rain and snow melt
By starting at one edge of the roof and cutting each successive row of supports __ in shorter you can achieve the desired pitch for rain and snow melt
1/2
Typically each row of uprights consist of post __ ft on center, with each row spaces __ ft on center
Typically each row of uprights consist of post __ ft on center, with each row spaces __ ft on center
2 4
The inverted roof has a ____ feel
The inverted roof has a ____ feel
Even when the 2x4s burn through the roof will only drop down a ____ or ____ to the level of the main joist. These joist aren’t subject to the _____ temps for some time and will remain in place to support the framework above
Even when the 2x4s burn through the roof will only drop down a ____ or ____ to the level of the main joist. These joist aren’t subject to the _____ temps for some time and will remain in place to support the framework above
Avoid cutting too ____ on the inverted roof, where you could sever parts of the 2x4 framework
Avoid cutting too ____ on the inverted roof, where you could sever parts of the 2x4 framework
The preferred way to identify inverted roofs is during _____ inspections
The preferred way to identify inverted roofs is during _____ inspections
If the 2x4s join the top plate at other than ____ angles you have a truss roof and must evacuate
If the 2x4s join the top plate at other than ____ angles you have a truss roof and must evacuate
One dangerous relative of the inverted roof is the ____ roof. You can encounter this oddity on any type of roof, flat ____ or peaked of standard or truss construction
One dangerous relative of the inverted roof is the ____ roof. You can encounter this oddity on any type of roof, flat ____ or peaked of standard or truss construction
There are __ listed dangers to rain roofs the first is ____ weight. The second is the two layers can substantially ____ or prevent ventilation of the area and the third is multiple ____ spaces
There are __ listed dangers to rain roofs the first is ____ weight. The second is the two layers can substantially ____ or prevent ventilation of the area and the third is multiple ____ spaces
A quick way to get water into the void space between a rain roof and the roof below is using a _____ nozzle or distributer. The key to success is early recognition of a rain roof to permit quick hose deployment of a stream to this area
A quick way to get water into the void space between a rain roof and the roof below is using a _____ nozzle or distributer. The key to success is early recognition of a rain roof to permit quick hose deployment of a stream to this area
The rain roof is supported by a raised wooden framework of ___ that rest directly on the deck of the roof below
The rain roof is supported by a raised wooden framework of ___ that rest directly on the deck of the roof below
______ panels have a similar potential for raining flaming droplets on materials below like a metal deck roof fire
______ panels have a similar potential for raining flaming droplets on materials below like a metal deck roof fire
Insulpans are made of _____ insulation sandwiched between two layers of osb. They are __ ft wide by __ ft long. They create large ____ ceilings
Insulpans are made of _____ insulation sandwiched between two layers of osb. They are __ ft wide by __ ft long. They create large ____ ceilings
Insulpan panels are being installed on new ____ apartment and _____ developments around the us
Insulpan panels are being installed on new ____ apartment and _____ developments around the us
These panels are are highly _____, producing tremendous quantities of ____ smoke and intense flame
These panels are are highly _____, producing tremendous quantities of ____ smoke and intense flame
Insulpans are supposed to be separated from the occupancy by a _____ ceiling
Insulpans are supposed to be separated from the occupancy by a _____ ceiling
He recommends only cutting these panels from an ______
He recommends only cutting these panels from an ______
The second problem with these panels is their thickness. Some can be up to ____ inches thick. The typical 12 in circular saw has a depth of cut only __ inches.
The second problem with these panels is their thickness. Some can be up to ____ inches thick. The typical 12 in circular saw has a depth of cut only __ inches.
These panels are readily cut with a chainsaw that has Atleast __ inch depth of cut, but many fd chainsaws have a chain guard that doesn’t allow such a deep cut
These panels are readily cut with a chainsaw that has Atleast __ inch depth of cut, but many fd chainsaws have a chain guard that doesn’t allow such a deep cut
The good thing about these panels is there is not common ____ extending down the row to further spread fire
The good thing about these panels is there is not common ____ extending down the row to further spread fire
Flashcards
Inverted Roof
Inverted Roof
A roof type with supporting beams sloping down from the edge, creating a pitched surface.
Inverted Roof Era
Inverted Roof Era
A common building practice from the 1920s to the 1960s, often used in large flat roofs.
Stair-Stepped Supports
Stair-Stepped Supports
Technique for creating a pitch in an inverted roof by gradually shortening each row of supports.
Inverted Roof Support Spacing
Inverted Roof Support Spacing
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Springy Feel
Springy Feel
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Inverted Roof Fire Collapse
Inverted Roof Fire Collapse
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Cutting Too Deep
Cutting Too Deep
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Prefire Inspections
Prefire Inspections
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Right Angles
Right Angles
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Rain Roof
Rain Roof
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Rain Roof Dangers
Rain Roof Dangers
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Cellar Nozzle
Cellar Nozzle
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Rain Roof Support
Rain Roof Support
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Insulpan Panels
Insulpan Panels
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Insulpan Composition
Insulpan Composition
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Cathedral Ceilings
Cathedral Ceilings
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Insulpan Applications
Insulpan Applications
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Insulpan Fire Hazard
Insulpan Fire Hazard
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Gypsum Ceiling
Gypsum Ceiling
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Insulpan Cutting
Insulpan Cutting
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Insulpan Thickness
Insulpan Thickness
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Chainsaw for Insulpan
Chainsaw for Insulpan
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Insulpan Fire Spread
Insulpan Fire Spread
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