OSB as vapour retarder / Guides

Interior sheathing wood frame construction
Air and vapour barriers

Interior sheathing as an air and vapour barrier

...vapour barrier. Ideally we'd have no vapour barrier in summer; but short of that we should at least have one that allows as much drying to the interior as ...

Choosing between OSB or Plywood for house sheathing for Roofs, Walls & Floors.
Wood and organic materials

Which is better, OSB or Plywood for Roofs, Walls & Floors?

...assified as a type II vapour retarder, which is suitable for use as what is exclusively known as a 'vapour barrier' on a work site, the standard 6 mil polyethyl...

Poly vapour barriers in air conditioned houses can cause mold and rot
Healthy indoor air quality

Why you should Never Install Air-Con in a Home with a Vapor Barrier

...assemblies in all but the coldest of climates, or at least change their location within the wall assembly. Putting a plastic vapour barrier on the insid...

Dense-packed cellulose wall insulation
Wall assemblies - new construction

Dense-packed cellulose insulation wall systems

...as fallen victim to the claims of safer, easier and 'better' options such as fiberglass or mineral wool batt insulations. These weaknesses are largely baseless ...

Choosing a building envelope
Wall assemblies - new construction

Choosing a building envelope

...vapour control layer: Commonly known as a 'vapour barrier' but a better term to use would be a vapour retarder. A moisture control barrier should slow diff...

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