Can a home be too airtight / Guides

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

Ventilation & air exchangers

...ast 40 years in Canada are relatively airtight . Before that we generally relied on leaky uninsulated walls to provide fresh air and prevent mold and mildew, an...

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

The Difference between air barriers and vapour barriers

...ater vapor that can pass through a ripped and torn vapor barrier is insignificant as long as the air seal is intact. Can a house be too airtight? No it cannot...

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

What is an air barrier?

...argely as a breathable membrane to protect against water penetration behind cladding, it can be an effective air barrier if installed as such. Water vapor can p...

Air and vapour barriers

Aerobarrier home and attic air-sealing spray

...as there are too many variables to be able to do that accurately. But to give a reasonable ballpark cost, according to Patrick Rouleau, "we are talking about a ...

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

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

...at arena. Straw is a natural and non-toxic material; raw wood and concrete are equally benign, so this could be a good start to creating a healthy home. To re...

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!"

...aws of physics are pretty ironclad and have yet to be defeated, but there are some fronts where you can actually make a difference. Duct leakage: Air leakin...

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

How to choose a home-building contractor

...at is accessible to all of us. And just because someone has been building homes for a couple of decades does not automatically mean they understand all the issu...

Ssolar air heater
Solar thermal collectors

All about solar air heaters - DIY or purchased

...ar air heaters work: Solar air heater diagram © Ecohome The above diagram indicates the basic concept of a solar air heater, and while there are many de...

Frost in attic
Roof assemblies - renovation

Why is there frost in my attic?

...al with any air leakage. Electrical fixtures are notoriously leaky (and this may be better left to electricians) but there are airtight boxes available that you...

Choosing the right firewood
Wood stove and biomass heat

Burning the right firewood for maximum heat output and minimum environmental impact

...and seasoned and are in alphabetical order: American beech Apple Ironwood Red oak Shagbark hickory Sugar maple (Music to eastern Canadian's ears!)...

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

Choosing between an HRV and an ERV

...at the industry is always evolving, as are opinions and what qualifies as the latest 'best practice'. In Canada, the ventilation capacity is prescribed accord...

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