Government Documents Repository
A project to capture Canadian government documents in a repository.
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- Study of poured-in-place concrete wall assemblies in coastal British Columbia
- abstract: Rainscreen wall and window assemblies are now being used in coastal British Columbia because they provide improved water penetration control properties and acceptable long-term performance. A recent trend has seen builders and the design community increasingly utilize lower cost poured-in-place concrete wall assemblies, without rainscreen, in combination with rainscreen windows to provide acceptable long-term envelope performance. Canada Mortgage and Housing Corporation (CMHC) and Homeowner Protection Office (HPO) commissioned a study to analyze and document potential performance questions associated with poured-in-place concrete wass assemblies, as well as develop a guideline for appropriate design and construction practices. The primary focus of the study is on the design and construction of above-grade concrete walls. Issues relating to interfaces with horizontal concrete elements such as floor and roof slabs, and projecting fins are also discussed.