Moisture barrier / Guides

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

...moisture inside wall assemblies. Be careful not to confuse Air barriers with Vapor barriers either, they're not the same... Adding to that problem is that we ha...

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

Basement renovations: How to prevent mold when finishing basements

...barrier (60ng and under). At that level of moisture permeability, an almost immeasurably small amount of moisture will be able to migrate into the wall, but w...

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?

...moisture during construction, is the moisture that can infiltrate through wall assemblies after completion. How durable a wall is depends heavily on its ability...

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?

...barriers in the form of 6 mil poly vapor barriers , exterior weather resistant barriers (WRBs) , tapes and caulking etc, so the cost doesn’t really go up much. ...

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

Best practices for basement insulation in new home construction

...moisture protection for this wall assembly will mean moisture will migrate inwards. Mineral wool is not harmed by moisture, but there may be additional heating ...

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

...moisture between two vapor barriers . If a home already has a vapor retarder or vapor barrier, it’s important not to add another vapor-impermeable layer on the ...

Roxul mineral wool batt insulation in LEED Homes
Insulation and soundproofing

Choosing the right insulation: the pros, cons and applications for walls, slabs & basements

...moisture sensitive and should not be installed where it will be exposed to moisture. Despite how commonly it can be found insulating foundation walls, it should...

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

...barrier; 2x8 stud wall at 24" centres with mineral wool batts R 28; 1"1/4 exterior mineral wool board R5; plywood sheathing; house wrap; strapping; ...

Air and vapour barriers

Aerobarrier home and attic air-sealing spray

...barrier reduces heat loss in winter, overheating in summer, and prevents moisture build up in walls which can lead to mould and rot. We recently had a chance ...

Building Climate Zones USA & Canada Maps Help with Specification of Homes
Planning and Design

Climate Zones in USA & Canada for Building Homes

...barrier on the warm side of the insulation to prevent moisture from rotting walls, whereas with air-conditioned homes in Florida, the vapor barrier goes on the ...

Top Tips for Getting a House Ready for Winter
Wall assemblies - renovation

Winter preparation for your home - are you ready for the cold?

...moisture damage by stopping humid air from escaping and depositing moisture in the wall around your windows. Read more here about what to look for when shopping...