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 ...

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...

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...

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...

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? ...

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

The Difference between air barriers and vapor barriers

...walls, it contracts and squeezes out the moisture, leaving you with condensation. In order to prevent condensation from forming, a vapor barrier should be pla...

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

Airtight Construction of Homes is Essential: "Your house sucks." "Oh yeah? your house blows!"

...airtight, if the pressure isn't balanced you will be sucking air in or forcing it out and, despite your efforts, making the inside environment all the more like...

Tips for finding a reliable green home builder
How to Find Qualified Green Building Professionals

How to choose a home-building contractor

...airtight homes? Do you conduct blower door tests? Do you do energy modelling? What do you do to avoid thermal bridging in walls? What are your preferred...

Green cleaning products
Healthy indoor air quality

6 easy steps to detoxify your home

...airtight seal on a paint can that has already been opened and used. Paints often contains toluene, a potent reproductive toxin; as well as volatile organic co...

Passively-heated off-grid LEED house in Low, Quebec
Off-grid and Net-Zero Housing

Off-grid living blog: a firsthand account of building and living in a remote area

...walls, R-30 in basement walls, and R-20 underneath the basement slab, which is much closer to what we actually did. I've elsewhere seen reference to concepts si...