Pressure equalization and the control of rainwater penetration under dynamic wind loading

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TypeArticle
Journal titleConstruction Canada
ISSN0228-8788
Volume36
Issue2
Pages4548; # of pages: 4
SubjectRainscreen Walls; Building Envelope; Wind Loads; Air and vapour barriers; Rainscreen walls
AbstractPressure-equalized rain-screen (PER) technology represents the most complete design approach to the control of rain penetration through walls. A PER wall system in its simplest form will contain three components: an air-barrier system, a cavity and a rain screen. Each of these components must contain properly designed features in order for the wall system to control water penetration through its fabric. This penetration is due to the kinetic energy of the rain-drops, surface tension, gravity, capillarity and wind induced air-pressure differentials. The last force is significant and the pressure-equalization requirements of the system was developed to specifically address this driving force.
Publication date
LanguageEnglish
AffiliationNRC Institute for Research in Construction; National Research Council Canada
NoteReprinted in Building Envelope Performance and Durability : IRC technical seminar held in 11 cities across Canada February through March 1995 (NRCC-38991)
Peer reviewedNo
IdentifierIRC-P-3624
NRC number37778
5142
NPARC number20375895
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Record identifier1293b01f-f0f6-4cc5-935c-7e1c4ce0e8a3
Record created2012-07-23
Record modified2016-05-09
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