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

From National Research Council Canada

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Affiliation
  1. National Research Council of Canada. NRC Institute for Research in Construction
FormatText, Article
SubjectRainscreen Walls; Building Envelope; Wind Loads; Air and vapour barriers; Rainscreen walls; Murs à écran pare-pluie; Enveloppe du bâtiment
Abstract
Pressure-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
In
  • Construction Canada 36, no. 2 (March 1994): 45–48.
NoteReprinted in Building Envelope Performance and Durability : IRC technical seminar held in 11 cities across Canada February through March 1995 (NRCC-38991)
LanguageEnglish
Peer reviewedNo
IdentifierIRC-P-3624
NRC numberNRCC 37778
NRC-IRC-5142
NPARC number20375895
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Record identifier1293b01f-f0f6-4cc5-935c-7e1c4ce0e8a3
Record created2012-07-23
Record modified2020-06-06
Date modified: