What is an air barrier / Guides

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

What is an air barrier?

...is carried into our walls by air leakage than is carried by vapor diffusion. That makes air barriers 100 times more important than vapour barriers, so why is no...

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

Replacing polyethylene vapour barriers with latex paint vapor control

...barrier is to control vapour diffusion, the job of the air barrier is to control air leakage. 6 mil poly can work effectively as an air barrier if it is caref...

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

Interior sheathing as an air and vapour or vapor barrier

...an additionally act as both an air barrier and vapour barrier. Taped OSB sheathing as air barrier © Durfeld Constructors There is no question that this ...

Blower Door Tests - What's the Cost & Who Does Them?
Air and vapour barriers

What is a blower door test? What's the cost? How do you find a company to do one?

...is powerful exhaust fan draws air in from any existing hole in your air barrier no matter how small it is. The operator then determines your ACH (air changes ...

Choosing a building envelope
Wall assemblies - new construction

Choosing a building envelope - starting with the perfect wall

...is an environmental separator between outside and inside . Its intent is to slow the movement of heat and air between outside and in, and manage moisture infilt...

Air and vapour barriers

Aerobarrier home and attic air-sealing spray

...an exterior air barrier, or you can wait until the drywall is completely installed and mudded. Another advantage of this product is realized with multi-unit b...

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

Choosing the right house wrap / weather barrier, which is best?

...and-stick' membranes, and if you'd like a fancier word for them, go with this - self-adhering air and water-resistive barriers. Peel-and-stick vapour-permea...

Off grid, passively heated and cooled house in the Gatineau Hills, Que
Off-grid and Net-Zero Housing

Off grid living blog, part 2: passively heated, this house in Quebec aims for LEED certification

...and construction. Craig and France-Pascale went for LEED certification through the CaGBC, and this is how they went about it. This is the second piece in a bl...

Better Basement Design on basement walls prevents mold and midlew
Healthy indoor air quality

Basement renovations: How to prevent mold when finishing basements

...and studs is crucial to allow a seamless blanket of insulation to create an air and vapour barrier. Unprotected wood touching concrete will wick moisture and ev...

Celsius Solar Igloo
Solar thermal collectors

Celsius: The solar heated igloo!

...is project stems from the fact that it is an artistic installation open to the public. This is an experimental project made with limited means, and with the hel...

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

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

...and studs is crucial to allow a seamless blanket of insulation to create an air and vapour barrier. Unprotected wood touching concrete will wick moisture and ev...