BCAB #1300 - Building Height and Roof Decks, Articles 220.127.116.11. & 18.104.22.168., 1992 B.C. Building Code
March 31, 1993
Re: Building Height and Roof Decks, Articles 22.214.171.124. & 126.96.36.199., 1992 B.C. Building Code
The building in question is a four storey wood frame apartment building with a trussed hip roof. Some of the fourth floor suites have uncovered roof decks cut into the corners of the hip roof which are accessible via a stair within the suite.
Reason for Appeal
Article 188.8.131.52. of the 1992 B.C. Building Code permits the height of such a building to be four storeys provided it is not more than nine metres between grade and the "uppermost floor level."
The appellant does not consider the roof decks to be a "floor" as intended by the code and does not feel they have any bearing on building height.
Building Official's Position
The building official maintains that because there is no storey height exemption in Sentence 184.108.40.206.(1) for stairways serving roof decks the enclosed stairways must be considered as the fifth storey. A five storey building is not permitted to be of combustible construction.
Appeal Board Decision #1300
It is the determination of the Board that the private uncovered roof deck in this appeal is not a floor level for the purpose of the 9 m height restriction required by Clause 220.127.116.11.(1)(b). The Board does not consider the stair leading to this roof deck to be a fifth storey because it is open to the fourth floor suite and is not in a separate roof top enclosure.
George R. Humphrey, Chair