Vapour barrier / Guides

...barrier / vapour barrier For added durability over the commonly used 6-mil polyethylene vapour barrier, we used a 10-mil barrier instead. The added thickness gives us more protection against accidental holes made during the construction phase, giving us greater confidence in it for radon gas protection. 10-mil Su...

...vapour barrier. Notice the difference between the studs against the foundation and the studs that formed an interior division wall; the vapour barrier did not protect the exterior wall from damage and mold growth. It caused the damage by prevented the wall from drying to the interior and instead sealed the moisture in....

...vapour barrier was installed on the inner surface of the inner wall. This meant that all electrical boxes had to be sealed to the air / vapour barrier and the barrier had to be carefully sealed where interior partitions and the second floor joists passed through it. In 1977, there were no contractors with experience ...

...vapour barrier is sandwiched between walls where it won't need to be punctured for electrical work, as all wiring is done on the interior 2x4 wall. High efficiency Double wall assembly © Bala Structures Not punching a ton of holes in your air barrier allows it to do what it is intended to do -...

...barrier from the assault it would normally receive from wiring and other penetrations when we rely on an interior polyethylene as an air and vapour barrier. See our pages on vapour and air movement & the difference between air & vapor barriers to get a better idea of how this works, and why it makes so much sense to bu...

...VAPOUR BARRIERS FOR SLAB ON GRADE: Install anchor bolts and lateral insulating panels and then the center panels. Next, cut around the plumbing system and mechanical equipment. Ensure that there are no gaps in the insulation, even in problem areas. Install a polyethylene air / vapour barrier over the entire ins...

...vapour barrier primer © Benjamin Moore Interior gypsum board: Latex paint ( or vapour retarder primer ) is recomended as an interior vapour control layer below grade. It is most important to not include a polyethylene vapour barrier or other vapour impermeable materials that prevent walls from drying. 6 mil...

...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 barrier should slow diffusion of moisture through walls in either direction without preventing them from properly drying. Some materials within a wall assembly m...

...barrier at all, you really do need one. This requires lifting insulation, laying down a polyethylene vapour barrier over the whole surface (it can go up and down over joists) then reinstalling the insulation. Make sure the poly is well-taped at the seams and on the sides as well, it will serve little purpose if it allo...

...vapour barrier protected between layers of EPS foam © Legalett Read more about Insulated Slab-on-Grade Foundation Form Systems here , from the EcoHome Green Building Guides

...vapour barrier and air barrier. Blowing agents are 1430 times worse than carbon dioxide, exponentially worse than EPS. For ecological reasons rather than performance, we recommend limiting its use when possible unless it is genuine Dow Corning styrofoam which uses foam blowing agents that are environmentally better ....