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9.10.16.1.(7) | Application | Intent |
| OS1 | OP1 |
| Objective | OP1 Fire Protection of the Building |
| Attribution | |
| Application | Application 1: Vertical fire stopping of concealed spaces in mansard
or gambrel style roofs, exterior cornices, balconies and canopies of combustible construction in which the exposed construction
materials within the space have a surface flame-spread
rating exceeding 25, at locations where the concealed spaces extend
across the ends of required vertical fire separations.
This applies to buildings to which Part
9 applies [see Sentence 1.3.3.3.(1) of Division A for application of
Part 9].
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| Intent | Intent 1: To limit the probability that certain concealed spaces [at
the ends of required vertical fire separations] in mansard or gambrel style
roofs, exterior cornices, balconies and canopies will not be fire stopped,
which could lead to the spread of fire from one side of the fire separation
through these spaces to the other side of the fire separation, which could
lead to damage to the building on the other side of the fire separation.
Intent 2: To limit the probability that concealed spaces in mansard
or gambrel style roofs, exterior cornices, balconies and canopies will not
be separated, which could lead to the spread of fire within these spaces,
which could lead to damage to the building. |
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