OSB Vapour retarder / Guides

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?

...vapour permeability and low water retention, such as mineral fibre." Where to put vapour barriers (CMHC): "Materials that act as vapour barriers (vapour ret...

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

...OSB "because everybody does it," see why we consider that the small extra cost of plywood may be worth it when compared to the disadvantages of OSB here . So;...

Choosing a building envelope
Wall assemblies - new construction

Choosing a building envelope - starting with the perfect wall

...vapour control layer, or vapor barrier : Although commonly known as a 'vapour barrier' a better term to use would be a vapour retarder. A moisture control bar...

Dense-packed cellulose wall insulation
Wall assemblies - new construction

Dense-packed cellulose insulation wall systems

...vapour retarder/air barrier 4) Mesh barrier for cellulose installation 5) Wood studs and cellulose fibre insulation 6) Semi-permeable foam 7) Drainage p...

Interior sheathing as air & vapor barriers in wood frame construction
Air and vapour barriers

Interior sheathing as an air and vapour or vapor barrier

...vapour barrier by the National Building Code. Including a vapour control measure on the warm side of the insulation is essential for preventing moisture movem...

The difference between air barriers and vapour barriers
Air and vapour barriers

The Difference between air barriers and vapor barriers

...vapour diffusion. These are two completely different things, with two completely separate solutions. Vapor diffusion is the process of moisture passing throug...