TECHNICAL RESEARCH
INDUSTRY EDUCATION
Illustrated Guide ‒ R22+ Effective Walls in Residential Construction in BC (Second Edition)
Description This guide consolidates information on above and below grade wall assemblies for low- and mid-rise buildings that are capable of achieving R-22 or greater effective thermal performance. It is intended to be an industry resource to meeting this thermal performance level, while not compromising other aspects of building enclosure performance, including moisture management, air leakage, and durability. This second edition has a shift in focus from the original guide because of a change to the requirements by the City of Vancouver. It now includes information that applies to low-rise detached and semi-detached homes, row-houses/townhomes, and multi-unit residential buildings up to six storeys within British Columbia. The main focus is on wood-frame, concrete, and steel-frame walls that use traditional construction methods, with some guidance for other less common wall types. Fire risk considerations for low- and mid-rise buildings are also addressed. Impact This guide was developed to assist builders and designers to construct walls that achieve R-22 or higher thermal performance.
Guide available online at www.bchousing.org Order online at www.crownpub.bc.ca
Status:
Partners: City of Vancouver, Building and Safety
Standards Branch, City of New Westminster, FPInnovations, Canadian Wood Council, and other partners
Audience: Residential builders, architects, engineers, contractors, and the construction industry in general
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59 HOUSING RESEARCH & EDUCATION PROJECT HIGHLIGHTS | JULY 2021
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