Code Definition
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"Air barrier assembly means the combination of air barrier materials and air barrier accessories within the environmental separator that are designed to act as a continuous barrier to the movement of air through the environmental separator." -National Building Code of Canada |
Plain Language:
- An air barrier prevents air flow through wall, floor and roof assemblies.
- Continuous is key.
- Materials like tapes, peel-and-stick membranes, caulking and gaskets are part of the air barrier.
