Vapour barriers / Guides

Exterior air barrier membrane © Ecohome
Air and vapour barriers

How to install an air barrier for reduced air leakage

...barriers and vapour barriers: The job of a vapour barrier is to prevent vapour diffusion and the job of an air barrier is to stop air leakage through differen...

Vapor retarder latex primer instead of polyethylene sheet
Air and vapour barriers

Replacing polyethylene vapour barriers with latex paint vapor control

...vapour barriers time to understand the difference to air barriers , and firstly it should be pointed out that the water vapour permeating through building mater...

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

The Difference between air barriers and vapor barriers

...barriers and vapor barriers is to prevent moisture from forming at that critical point, they just do it in completely different ways. Vapor barriers The rul...

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...

Radon and vapour barrier below slab on grade floor
Healthy indoor air quality

Vapour / radon barriers below slab floors

How to Install a Radon Barrier - Slab Floors WATCH MORE VIDEOS FOR SLAB ON GRADE FOUNDATION CONSTRUCTION Polyethylene barriers below slab floors serve ...

Air barriers are essential to a properly functioning wall system
Air and vapour barriers

What is an air barrier?

...barriers 100 times more important than vapour barriers, so why is no one talking about them? We don't talk about air barriers because we are too busy talking ...

Tyvek home wrap left exposed to wind and UV rays
Air and vapour barriers

Weather barriers - what they do and how to install them

...vapour barrier. Products rated below those numbers are vapour barriers, those rated between 1 and 10 perms are considered vapour retarders. The higher the perm ...

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

...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 suscep...

Exterior damp proofing and drainage mat to protect basements from wate
Insulation and soundproofing

Best practices for basement insulation in new home construction

...vapour barrier or other vapour impermeable materials that prevent walls from drying. 6 mil poly vapour barriers are an above grade solution intended to allow ...

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...

Finished basements can lead to mold and mildew
Healthy indoor air quality

Why are basements moldy? How to fix or Prevent a Moldy Basement

...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 d...

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