Air tightening new houses for improved energy efficiency: What is the potential?

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TypeArticle
Journal titleJournal of Thermal Insulation and Building Envelopes
ISSN1065-2744
Volume16
IssueJan
Pages222226; # of pages: 5
SubjectAir Tightness/ Air Leakages; Building Envelope; Energy Conservation; Insulation
AbstractIn the last decade, construction practice has evolved in response to the need for reducing air leakage through the envelopes of houses. As a result, new houses have been built more nearly airtight on average. In recognition of this fact, the 1990 National Building Code (NBC) requires a mechanical ventilation system capable of producing 0.3 air changes per hour, thereby providing a mechanical means of achieving minimum levels of ventilation when needed. With only a few regional exceptions, builders have been meeting the intent of the mechanical ventilation provisions of the NBC with exhaust-only fans-typically kitchen and bathroom fan combinations.
Publication date
LanguageEnglish
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedYes
IdentifierIRC-P-3272
NRC number36025
4112
NPARC number20358446
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Record identifierae73d8c8-d2e0-46c4-9884-4d5dc66dba4b
Record created2012-07-20
Record modified2016-05-09
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