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3.3.5.4.(2) | Application | Intent |
| OS3 |
| Objective | OS3 Safety in Use |
| Attribution | |
| Application | Application 1: Design, with respect to preventing accumulations of
ice and snow, of treads and landings in interior stairs that extend to the
roof of a storage garage. This
applies to buildings described in Sentence 1.3.3.2.(1) of Division A.
Application 2: This also applies to rooms and spaces intended for
the storage, manufacture or use of hazardous or explosive material, in buildings to which Part 9 applies [see Sentence 1.3.3.3.(1) of Division A for application of Part 9], as stated in Sentence 9.10.1.2.(4).
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| Intent | Intent 1: To limit the probability that the accumulation of ice or
snow on stair treads or landings will lead to persons using the stairs tripping
or falling, which could lead to harm to persons. Intent 2: To limit the probability that the accumulation of ice or
snow on stair treads or landings will lead to persons using the stairs in
an emergency situation tripping or falling, which could lead to delays in
the evacuation or movement of persons to a safe place, which could lead to
harm to persons. Intent 3: To limit the probability that the accumulation of ice or
snow on stair treads or landings will delay emergency responders' access to
the roof, which could lead to delays in carrying out emergency response operations,
which could lead to delays in the evacuation or movement of persons to a safe
place, which could lead to harm to persons. |
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