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Facts and fictions of rain screen walls

From National Research Council Canada

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Name affiliation
  1. National Research Council of Canada. NRC Institute for Research in Construction
FormatText, Article
SubjectAir and vapour barriers; Rainscreen walls; rain screens; cavity walls; air barriers; wind loads; mur creux; pare air; charge de vent
Abstract
Pressure equalization across the exterior cladding of exterior walls is an important feature for the application of the rain screen principle which aims at minimizing rain entry into exterior walls. Confusion exists in the industry about the difference between cavity walls and rain screen walls. The paper focuses on the wall components that contribute to obtain pressure equalization across the outside cladding, that is, a compartmented cavity behind the cladding, a rigiid air barrier assembly, and adequate venting area of the cladding in relation to the leakage area of the air barrier. The results of IRC laboratory testing and field monitoring of two buildings of different construction for pressure-equalization performance are briefly presented, with discussion of possible reduction of the design wind loads for rain screen cladding.
Publication date
In
  • Construction Canada 32, no. 2 (March 1990): 40, 42–44,46.
NoteReprinted in Construction Practice : Selected Applications in Construction Technology Section 3 (NRCC- 35475)
Reprinted 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-1666
NRC numberNRCC 32332
NRC-IRC-1892
NPARC number20377804
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Record identifier3734fcae-528d-4445-bde7-d17883eb9c7b
Record created2012-07-24
Record modified2020-06-06
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