Airtight homes / Guides

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

Ventilation & air exchangers

...homes, and condensation on windows was common place. This led to a build up of mould and mildew in homes. Modern day airtight homes need mechanical assistance t...

Net Zero Homes - Canada's first certified Net Zero House in BC
Green building certifications

The first Net Zero-labelled homes in Canada

...homes, as well as deliver the required training for building significantly more energy efficient homes. Building science training is mandatory for participati...

Preventing radon gas in homes starts with testing for radon - the only sure way
Radon in Homes - Mitigation

Radon Gas Awareness - Up to 10% of North American homes tested have unsafe radon levels

...airtight environment we are exposed to much higher levels than in the drafty homes of the past. In North America, combined figures from the EPA and Health Canad...

Wildfire Smoke & How to Keep it Outside Homes
Healthy indoor air quality

How to keep wildfire smoke out of Green Homes with mechanical ventilation systems?

...airtight building envelope Buildings benefit from an airtight envelope, since it allows better control over indoor air quality . Airtightness also improves en...

Radon Mitigation - Installing a radon evacuation stack in a slab floor
Radon in Homes - Mitigation

Mitigating radon gas in homes

...homes and has serious health effects . Reducing radon gas in homes is cheap and easy with a slab floor barrier with proper sealing at junctions and evacuation s...

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

How to choose a home-building contractor

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

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

The Difference between air barriers and vapour barriers

...airtight seal with no moisture carried through by air transport. The key factor here, is that the amount of vapor molecules that will pass through that gypsum...

How to Choose between an HRV and ERV system
HRV and ERV

Choosing between an HRV and an ERV

...airtight as we can, especially Passive House or LEED certified homes. This makes mechanical ventilation essential in these high performance home by installing e...

Leed platinum plaque
Green building certifications

All about green home certification programs & rating systems for USA & Canada

...Homes: ENERGY STAR promotes guidelines for energy efficiency in new homes resulting in homes that are at least 20% more efficient than homes built to provinci...

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

What is an air barrier?

...homes can: Increase heating and cooling costs Cause moisture damage in walls Allow pollutants and debris to collect in wall interiors provide openings...

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

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

...Airtight homes are great for keeping heat in, but that leaves all the indoor air pressure aiming for the any hole, no matter how small . In some cases (particul...

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