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Water management and moisture transport in direct-applied and EIFS wall assemblies

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; direct-applied exterior finish system (DEFS); drainage; exterior insulation and finish system (EIFS); moisture content; rainscreen; sheathing membrane; wall cladding; water managed; vapor drive; vapor permeance
Abstract
This paper presents results from an ongoing program of research investigating the performance of water-managed direct~applied finish system (DEFS) and exterior insulation and finish system (EIFS) wall c1addings. These wall claddings incorporate water management into their design by combining the use of a sheathing membrane with flashing and weeps to direct any incidental intruding Water out of the cladding. These systems are designed around a rainscreen principle. Rainscreen designs assume that some water will penetrate beyond the exterior face of the wall that must be removed by a second line of defense. The water-managed DEFS and EIFS systems provide the opportunity to combine a "stucco look" architectural style with traditional wall cladding water-managementfeatures.
Publication date
In
  • Journal of Testing and Evaluation 27, no. May 3 (1 May 1999): 219–230.
LanguageEnglish
Peer reviewedYes
NRC numberNRCC 47726
NRC-IRC-16995
NPARC number20386747
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Record identifierc7ca42e6-1fe0-43e6-99a4-734719d2da41
Record created2012-07-25
Record modified2020-03-20
Date modified: