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Construction of insulated floors over unheated space

From National Research Council Canada

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Affiliation
  1. National Research Council of Canada. NRC Institute for Research in Construction
FormatText, Article
Subjectbuilding, construction, floors, insulation, building code, air barrier, vapour barrier; Air and vapour barriers
Abstract
A question was raised at the Spring 2000 SBOA Conference regarding the construction of insulated floors over unheated space, for example, floors over garages. The question focused on the location of the vapour barrier relative to other materials, ducting and spaces in the assembly. The response provided in the April 2000 Building Officials Newsletter provided some misleading information. Some of the confusion appears to be due to misunderstandings related to the functions, and consequently the required properties and locations, of the airtight element of the air barrier system and the vapour barrier; and the relationships among Article 9.25.1.2. on low air and vapour permeance materials, Subsection 9.25.3. Air Barrier Systems, and Subsection 9.25.4. Vapour Barriers.
Publication date
In
  • Building Officials Newsletter (Saskatchewan Municipal Affairs and Housing), no. Fall (1 September 2000): 1–3.
LanguageEnglish
Peer reviewedNo
NRC numberNRCC 46006
NRC-IRC-15053
NPARC number20386115
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Record identifierc2e301d0-5f49-4a09-81af-b414fbd3a993
Record created2012-07-25
Record modified2020-03-26
Date modified: