SYMPOSIA PAPER Published: 01 January 1996

Noncombustible, Pressure-Equalized Rainscreen Technology to Reduce Leaking in Eifs


Leaking in wall assemblies has been shown to be reduced if the air pressure difference across the cladding can be reduced. The EIF system described has been tested to demonstrate that mineral wool insulation can be used to allow the air pressure difference across the exterior coating of the system to be equalized. The mineral wool is vented at the bottom of the panel. Channels are introduced into the insulation to facilitate the speed of pressurization. Testing has also shown the system to be durable.

Author Information

Edgar, JRS
Technical Sciences, Sto Finish Systems Canada, Mississauga, Ontario
Brown, WC
Institute for Research in Construction, National Research Council of Canada, Ottawa, Ontario
Rousseau, J
Canada Mortgage and Housing Corporation, Ottawa, Ontario
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Developed by Committee: E06
Pages: 165–176
DOI: 10.1520/STP39219S
ISBN-EB: 978-0-8031-5561-9
ISBN-13: 978-0-8031-2040-2