BCAB #1073 - Fire Resistance of Roof Supports, Sentences 22.214.171.124.(1) and 126.96.36.199.(1)
June 27, 1989
Re: Fire Resistance of Roof Supports, Sentences 188.8.131.52.(1) and 184.108.40.206.(1)
With reference to your letter of May 8, 1989 regarding the fire rating of supports for an unrated roof assembly.
It is stated that the building in question falls under the provisions of Article 220.127.116.11., and is fully sprinklered. Clause 18.104.22.168.(2)(c) requires that the roof have a 1 hour fire-resistance rating, and (d) that supports be equally rated. However, if the sprinkler system complies fully with Sentence 22.214.171.124.(1), then the requirement for a fire-rated roof is waived. Taking into account Sentence 126.96.36.199.(1) and Clause 188.8.131.52.(2)(c) we consider that the waiver must also apply to the supports for the roof.
J.C. Currie, Chair