Air and vapour barriers

Air and vapour barriers

Aerobarrier home air-sealing spray

Aerobarrier is a non-toxic acrylic spray that quickly and affordably seals air leaks in homes

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

Weather barriers - what they do and how to install them

Weather barriers (or more accurately water-resistive barriers) keep bulk water away from vulnerable building components and allow walls to dry at the same time.

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Problem areas of air leakage in a home and blower door test being cond
Air and vapour barriers

Balancing air pressure in a house: "Your house sucks." "Oh yeah? your house blows!"

Odds are that at any given time the air pressure in your house is out of balance and either drawing air in or forcing it out. Learn the causes, the effects a...

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Exterior air barrier membrane © Ecohome
Air and vapour barriers

How to install an air barrier for reduced air leakage

Air leakage is responsible for a large portion of the heat loss and moisture damage in walls.

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Interior sheathing wood frame construction
Air and vapour barriers

Interior sheathing as an air and vapour barrier

3/4 inch OSB sheathing on the interior can be an excellent air barrier and a great vapour barrier as well.

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

What is an air barrier?

Approximately 100 times more water vapour is carried into our walls by air leakage than is carried by vapour diffusion. That makes air barriers 100 times mor...

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Vapor retarder primer
Air and vapour barriers

Replacing polyethylene vapour barriers with paint

Vapour retarder primers can be twice as effective as the requirements laid out in our national building code regarding vapour barriers.

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

The Difference between air barriers and vapour barriers

Can a house be too airtight? No it cannot. The difference between air barriers and vapour barriers is often confused. Also confused, is which one is more imp...

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