CodeChronicle

OBC 2006 Division B

9.4.2.2.

Version 0 — in force 31 December 2006

In force
Verified · covered Verified against the 2006-12-31–2007-04-01 consolidation, whose range covers the query date. How to read this

Provenance

OBC 1997 · continues from 9.4.2.2. — Pro

Base · O. Reg. 350/06 · ext← current

Original — base regulation

OBC 2012 · continues as 9.4.2.2. — Pro

9.4.2.2. — Specified Design Snow Loads

(1) Except as provided in Sentences (2) and (3), specified snow loads shall be not less than those calculated using the following formula:

S = Cb ∙ Ss + Sr

where,

S = specified snow load,

Cb = basic snow load roof factor, which is 0.45 where the entire width of a roof does not exceed 4.3 m and 0.55 for all other roofs,

Ss = 1-in-50 year ground snow load in kPa, determined according to Supplementary Standard SB-1, and

Sr = associated 1-in-50 year rain load in kPa, determined according to Supplementary Standard SB-1.

(2) In no case shall the specified snow load be less than 1 kPa.

(3) Bow string, arch or semi-circular roof trusses having an unsupported span greater than 6 m shall be designed in conformance with the snow load requirements in Subsection 4.1.6.

Text · e-Laws consolidated snapshot