The proper selection and placement of vapour-impermeable materials within wall assemblies is fundamental to their durability in both cold and warm climates. Failure to correctly account for the impacts of vapour diffusion can lead...
Tag: Vapour retarder
Roof repair vs. replacement: When is it time?
(11/27/2018)
Determining the timing of an appropriate roof management approach is one of the most critical decisions a property manager can make. The cost to fully replace a roof can strain budgets. Deferring the decision...
The air/vapour barrier must die
(07/11/2018)
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...
The Centre for Construction and Engineering Technologies at George Brown College, Toronto, in co-operation with a manufacturer is studying the performance of continuous air barrier, vapour retarder, and fibreglass insulation products.
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May 2025