Assessing the effectiveness of wall-window interface details to manage rainwater

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Conference10th Canadian Conference on Building Science & Technology (10BS&T): 12 May 2005, Ottawa, ON
Pages127138; # of pages: 12
Subjectbuilding components, cladding interfaces, wall-window interface, water penetration, window installation details, rain water entry; Wall/Window interface; Moisture performance
AbstractInadequate detailing and defective installation of windows has accounted for a significant number of premature failures of the building envelope. This has spurred the development of alternative construction details to control water intrusion at the wall-window interface. However, it is not known how effective these construction details may be over the life expectancy of the wall assembly. Laboratory investigations can provide an effective way to obtain reliable, insightful information regarding the effectiveness of specific wall-window interface details on their ability to influence rainwater entry to the wall assembly. A study was undertaken to investigate the effectiveness of such details typically used in wood frame low-rise wall assemblies to manage rainwater. An overview of the experimental approach and test protocol is given and includes a description of the test apparatus and the basis for estimating the effects on specimenssubjected to simulated climate loads. The test specimen configuration is described and details of specific wall-window interfaces evaluated in the study are provided. Results on water entry for the different wallwindow interface configurations are provided and the effectiveness of different details is discussed.
Publication date
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedYes
NRC number47685
NPARC number20377345
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Record identifier02fe1746-e843-4d08-98f2-c5064914ce5f
Record created2012-07-24
Record modified2016-05-09
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