Airtight & Weatherproof

Efficient, durable and airtight wall assemblies

Guide

Aerobarrier home and attic air-sealing spray

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

Tyvek home wrap left exposed to wind and UV rays

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.

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

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...

Exterior air barrier membrane © Ecohome

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.

Interior sheathing wood frame construction

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.

Air barriers are essential to a properly functioning wall system

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...

Vapor retarder primer

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.

The difference between air barriers 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...

Removing radon gas from well water

High levels of radon gas in the air of your home might be coming from your water and not the floor of your basement.

Insulating crawlspaces

How to insulate crawlspaces

Crawlspaces are very rare as part of a new home construction nowadays in Canada. If you've got one here's how to fix it.

Ice dam

What causes ice dams and how to fix them

Ice dams form at the bottom of roofs, letting water penetrate and cause damage to the interior of walls and roofs.

Advice

Can I put a breathable peel and stick weather (air) barrier on the inside walls and ceiling.
Posted by Anomika Singhn Oct. 1, 2018, 9:56 p.m. Air and vapour barriers 1 Responses

Do you have a diagram showing effect of winds on the pressure inside the house? If wind is blowing from the south, is a vacumn created inside the south or north wall of the house?
Posted by Bryan Bargen June 8, 2018, 5:20 p.m. Air and vapour barriers 1 Responses

Vapour barrier vs air barrier
Posted by Sherri Mccormick Aug. 17, 2018, 3:24 p.m. Roof assemblies - renovation 3 Responses

What is the best way to insulate a home from the outside?
Posted by Anonymous Dec. 12, 2017, 11:58 a.m. Wall assemblies - renovation 1 Responses

I want to insulate the outside of my house and I'd like to know which type of insulation you think is best.
Posted by Anonymous Nov. 15, 2017, 10:34 a.m. Wall assemblies - renovation 5 Responses

How do I create a complete air barrier using a vapour retarding primer?
Posted by Mihai Wilson May 3, 2018, 10:15 p.m. Wall assemblies - renovation 1 Responses

How to seal windows from exterior for water and air seal but not vapour seal?
Posted by Piyush Prince Nov. 7, 2018, 12:10 a.m. Windows and doors 1 Responses

Basement reno - How do I effectively insulate my basement?
Posted by Steve Janovsky Feb. 13, 2019, 10:25 p.m. Foundation and basement improvements 2 Responses

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