Tag Archives: Vapour Barrier

The air/vapour barrier must die

The terms “air barrier” and “vapour retarder” (or “vapour barrier”) are perhaps some of the most poorly understood concepts in the construction industry. A general lack of understanding of the functions of these materials has resulted in simplistic rules-of- thumb. It is crucial the industry agrees on terminology that communicates the specific functions and purpose of these materials to avoid confusion and costly errors.

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