Sheathing, Membrane, Breather Type
Scope:
1.1 This standard applies to breather type sheathing membranes intended for use on the outside of heated buildings, under the external finish, as a secondary protective covering against the entry of wind and moisture. They are to provide moisture-resistant and draught-resistant barriers that do not impede the passage of water vapor and therefore minimize the condensation of such vapor.
Project need:
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