Rain Penetration of the Window-Wall Joint

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Author	Search for: Finn, D. W.¹
Affiliation	National Research Council Canada
Format	Text, Article
Subject	Air and vapour barriers; Rainscreen walls; Moisture performance
Abstract	Rain penetration through construction joints is a major concern in Atlantic Canada, and it has been suggested that the Canadian Construction Research Board (CCRB) Nova Scotia Chapter examine the issue as part of Chapter activities. Solutions to rain penetration problems have centered on controlling the forces which drive water through the wall and into the building. Rain screen joints and walls with a separate continuous air barrier system should be installed in new buildings. Applying external caulking (face-sealing) to serve as both rain deflector and air barrier is a poor practice, and may actually compound rather than solve wall/window leakage problems. Attention should be paid to wall and joint details such as flashing during the design and construction stages to prevent poor installation habits from persisting.
Date published	1991
In	CCRB Nova Scotia Chapter [Proceedings] (1991): 12–.
Note	Prepared for Canadian Construction Research Board, Nova Scotia Chapter - Reprinted in Building Envelope Performance and Durability : IRC technical seminar held in 11 cities across Canada February through March 1995 ( NRCC-38991)
Language	English
Peer reviewed	No
Identifier	IRC-P-4028
NRC number	NRCC 38747 NRC-IRC-4839
NPARC number	20358929
Export citation	Export as RIS
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Record identifier	fc030c42-849a-43bc-bec2-71a5a7446c82
Record created	2012-07-20
Record modified	2020-06-06

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Date modified:: 2026-10-06