Airtightness tests on components used to join different or similar materials of the building envelope
Leblanc, R.
1991
Prepared for Canada Mortgage and Housing Corporation. Ottawa
Leblanc, R., (1991), Airtightness tests on components used to join different or similar materials of the building envelope, Prepared for Canada Mortgage and Housing Corporation. Ottawa.
| Abstract: |
| This project's goal was to verify the behaviour of several connection techniques used between various air barrier elements, where the same connections are exposed simultaneously to extended pressure and temperature differentials reflecting those that may exist in the extreme conditions met in Canada. Twenty-four specimens, including adhesive tapes, sealants, and other materials, were exposed to a pressure differential of 150 Pa during a continuous 5-month period (or until a system being studied lost its airtightness).
The test results indicated that spun-bonded olefin paper as well as acrylic-based sealants should not be used at connections where the temperature may be hot. In the case of spun-bonded olefin paper, attaching with staples is to be avoided. Given their high permeability, open-cell gaskets, mineral wool and perforated polyethylene membranes should not be used as air barriers. Finally, silicone-based sealants and adhesive tape showed perfect adherence qualities regardless of the operating conditions |
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This publication in whole or part may be found online at:  here. |
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