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15 Cards in this Set
- Front
- Back
Buildings are classified into how many major construction types and based on what? What does a building type limit during construction?
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There are 5 types (I, II, III, IV and V) based on the fire resistance of certain building elements. See CBC Table 601 for the fire rating (between 1 and 3 hours). The building type limits the types of materials that can be used.
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Which building type is the most fire resistant?
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Type I.
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Which building type(s) are considered non-combustible?
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Types I and II (only non-conbustible materials can be used, with some exceptions).
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Some building types contain A and B subgroups. What does this signify? Is A or B more restrictive?
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This indicates differences in fire-resistive requirements of the 2 subgroups. A is more restrictive.
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hat construction type is for most R-3 occupancies (residential homes)?
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Type V-A or V-B. Little to no fire resistance.
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In combination with occupancy group, a building's type limits what two things?
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Area and height. See CBC Table 503.
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Name examples of building elements that may be required to be fire resistance rate.
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Structural framing, bearing walls, non-bearing walls and partitions, floor and roof construction.
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Exceptions to the allowable height and building areas can be made by either of what two conditions?
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Automatic sprinkler system installation and/or if >25% of building's perimeter is on a street frontage.
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On what three factors are fire-resistance requirements based for exterior, nonbearing walls?
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1. Distance from building to property line
2. Type of construction 3. Occupancy group |
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What are the 2 purposes of designing buildings to certain classifications?
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1. Protect the structural elements from fire and collapse
2. Prevent fire from spreading from one building to another |
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Which has more limitations on area and height - Type 1 or Type V?
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Type V since it is more combustible.
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What are the factors that determine the fire hazard for a fire zone?
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1. Density
2. Access for firefighting equipment 3. Existing building heights |
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If a building is equipped throughout with an approved automatic sprinkler system, how much can the maximum height be increased?
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20 feet
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If a building is equipped throughout with an approved automatic sprinkler system, how many stories can be added to the building.
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One.
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What is a noncombustible material?
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1 .No part will ignite and burn when subjected to fire or any material passing the ASTM E136 test,
or 2. A material having a structural base of noncombustible material with a surfacing material not over 1/8 in. thick and a flame-spread rating of 50 or less. |