Laverne Dalgleish - Basic Air Barrier Requirements
Laverne Dalgleish - Basic Air Barrier Requirements
Laverne Dalgleish - Basic Air Barrier Requirements
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• air barrier material<br />
Definitions<br />
building material with an air permeance not greater than 0.02<br />
L/s·m² at 75 Pa that is designed and constructed to provide<br />
the primary resistance to airflow through an air barrier<br />
assembly.<br />
• Vapor Permeable (vapor <strong>Barrier</strong>)<br />
The property of having a moisture vapor permeance rating of<br />
10 perms (5.7x 10 -10 kg/Pa◦s◦m 2 ) - IBC [5 perms (2.9x 10 -10<br />
kg/Pa◦s◦m 2 ) – IRC] or greater, when tested in accordance<br />
with the desiccant method using Procedure A of ASTM E96.
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