Vapour barriers / Green Building & Sustainable Home Renovation Information & Advice

...barriers with vapor barriers either, they're not the same... Adding to that problem is that we have introduced engineered wood products that are far more susceptible to moisture damage than solid lumber. If you were thinking it's ok to build a new home with OSB "because everybody does it", see why we consider that the ...

...barriers on basement insulation will rot your walls" We put vapour barriers in basement wall assemblies to keep moisture from getting into them, as if they didn't already contain thousands of litres of water. Polyethylene won't keep foundations dry, they are already soaking wet. All it will do is prevent the thousands ...

...Vapour impermeable 0.1 perms or less Vapour semi-impermeable       1.0 perm or less and greater than  0.1 perms Vapour semi-permeable 10 perms or less and greater than 1.0 perms Vapour permeable  Greater than 10 perms   Understanding vapour permeability: All we are talking about so far are the stand alone ...

...vapour barriers in below grade wall assemblies are commonplace, frustrated building scientists insist that installing them is the worst thing you could possibly do down there. Basement renovations demonstrating mold growth in internal stud wall - Image © Ecohome Above is a photo of a basement being repaired after flo...