Construction of insulated floors over unheated space

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Journal titleBuilding Officials Newsletter (Saskatchewan Municipal Affairs and Housing)
Pages13; # of pages: 3
Subjectbuilding, construction, floors, insulation, building code, air barrier, vapour barrier; Air and vapour barriers
AbstractA 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 on low air and vapour permeance materials, Subsection 9.25.3. Air Barrier Systems, and Subsection 9.25.4. Vapour Barriers.
Publication date
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedNo
NRC number46006
NPARC number20386115
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Record identifierc2e301d0-5f49-4a09-81af-b414fbd3a993
Record created2012-07-25
Record modified2016-05-09
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