BCAB #1769 - Glass Guard in a Part 9 Single Family Dwelling
June 18, 2015
Re: Glass Guard in a Part 9 Single Family Dwelling
The project is a detached single family residential building within the scope of Part 9 of the BC Building Code. A glass guard, unrestrained at the top, is installed within the dwelling unit at one side of the stair and extends along a portion of the second storey that is open to below.
Reason for Appeal
There is a disagreement on whether requirements for glass in Subsections 9.6.1. or 9.8.8. apply to the subject glass guard.
The appellant contends that Article 22.214.171.124., and not 126.96.36.199., applies as Article 188.8.131.52. has specific reference to glass in guards. Section 9.6., which requires compliance with CAN/CGSB 12.20 – M “Structural Design of Glass for Buildings” does not apply to glass in guards.
Further, the appellant considers Sentence 184.108.40.206.(4), which is an exception to Table 220.127.116.11., applicable.
Building Official's Position
The building official maintains that the guard is a glazed panel and must comply with Article 18.104.22.168., therefore it must also comply with CAN/CGSB 12.20 – M “Structural Design of Glass for Buildings”, which requires glass guards to have a top rail.
Further, the guard must conform with Table 22.214.171.124.
Appeal Board Decision #1769
The board does not consider glass in guards to be a glazed panel as described in Article 126.96.36.199. It is the determination of the board that Section 9.6., which includes the referenced standard CAN/CGSB 12.20-M “Structural Design of Glass for Buildings”, does not apply.
The board further determines Sentence 188.8.131.52.(4) does not apply as effective performance has not been demonstrated, therefore the guard must conform with Table 184.108.40.206.
Lyle Kuhnert, Chair