Air barriers and vapor barriers / Guides

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

The Difference between air barriers and vapor barriers

...air barriers and vapor barriers The job of a vapor barrier is to prevent vapor diffusion, and the job of an air barrier is to stop air leakage through differe...

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

What is an air barrier?

...air barrier, but only if you set out with that in mind and properly seal it. The difference between air barriers and vapor barriers © Ecohome ...

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

Replacing polyethylene vapour barriers with latex paint vapor control

...Air leakage: Now that we have looked at some options regarding vapour barriers time to understand the difference to air barriers , and firstly it should be po...

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

...airtight, they don't dry as easily, and common building practices trap moisture inside wall assemblies. Be careful not to confuse Air barriers with Vapor barrie...

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

Interior sheathing as an air and vapour or vapor barrier

...air barriers in the industry, under normal air pressure conditions the average brand new home can expect to have its entire volume of air leaked out and replace...

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...

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?

...and install air barriers in the form of 6 mil poly vapor barriers , exterior weather resistant barriers (WRBs) , tapes and caulking etc, so the cost doesn’t rea...

How to Insulate Exterior Walls from the Outside US Canada Ecohome
Walls and Roofs

The easiest way to insulate walls from the exterior in older homes

...air barriers, some have vapor barriers, some have both and some have none. Some insulation panels (like EPS, XPS and polyiso) can act as a vapor barrier, which ...

Condensation on windows in our homes - why is it there? - how to stop it?
Walls and Roofs

Condensation on windows is a pain but is it a problem & how to stop it?

...air and vapor barriers, see here . This is why it’s so very important to carefully seal air-barriers in homes , paying special attention to joins and breaks i...

Correctly installed Triple pane south facing windows on Ecohome's Demo House
Windows and doors

Installing doors & windows for the best performance in high efficiency homes, LEED & Passive House

...and are most likely wet when purchased and installed, so as they dry they will shrink and allow air to leak out and in. Block supports: windows will often com...

Installing Siding Correctly
Exterior cladding

How to install siding

...and the side of the wall those different conditions are on will reverse between seasons due to insulation and/or air conditioning. In winter it is cold and dry ...