When modified and/or accessorized properly, the same insulation board providing thermal resistance may serve as an air, weather, and/or vapour barrier. Select foam plastic insulating sheathing (FPIS) products merge all barriers and the wall...


The North American steel industry has developed necessary tools to meet code requirements for acoustic separation in cold-formed steel frame construction in response to changes in the National Building Code of Canada (NBC). The...

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...