Airtight walls / Guides

Exterior air barrier membrane © Ecohome
Air and vapour barriers

How to install an air barrier for reduced air leakage

...walls, as one small hole can be responsible for depositing countless litres of water inside walls. Houses should always be built as airtight as possible, don't ...

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

What is an air barrier?

...walls dry. Air Leakage in homes can: Increase heating and cooling costs Cause moisture damage in walls Allow pollutants and debris to collect in wall ...

Condensation on windows leads to mold & mildew in homes, ERV & HRV systems help
Ventilation

Ventilation & air exchangers

...walls need to breath and that 'houses are too airtight', but this myth is completely false and very damaging to your home. Walls need to be able to dry, ideally...

Living green wall
Healthy indoor air quality

Living walls: what they do and don't do

...walls use a lot of energy? Due to the short duration and frequency of the irrigation cycle our walls use minimal electricity. Are living green walls noisy? ...

Ice dam
Roof assemblies - renovation

What causes ice dams and how to fix them

...walls: many older homes have insufficient insulation, particularly at junctions where the roof and walls meet. This problem is most notable with low-sloped roof...

Pre-fabricated straw bale SIPS panels, an environmental choice
Wall assemblies - new construction

Modern straw bale SIPS construction: high performance, durable, affordable & interesting

...airtight home, which will also greatly reduce heat loss, as well as moisture damage in the interior of walls. If you are looking into green building technique...

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!"

We go on incessantly here about the importance of air barriers in home construction to reduce air leakage , but no matter how hard you worked to make a house a...

Choosing a building envelope
Wall assemblies - new construction

Choosing a building envelope - starting with the perfect wall

...walls and breaking thermal bridging. If you are considering this route, there are pre-fab walls that meet LEED standards , and even turn-key prefab homes that...

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?

...walls. Moisture means rot and mold, rotten and moldy walls means home renovations are needed, and that means open up your wallet. Nothing good ever comes from w...

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

Off grid and passively heated, this house in Low, Quebec is aiming for LEED certification

...walls where it won't need to be punctured for electrical work, as all wiring is done on the interior 2x4 wall. Double wall assembly © Bala Struc...

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

...walls from getting wet are now preventing them from drying. We know how to build walls better, but in a lot of cases we are prevented from doing so by regulator...

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