Can a house be too airtight / Guides

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

The Difference between air barriers and vapor 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? can act as air barriers are drywall, sheathing, insulation, house wrap, even the polyethylene we normally install as a vapour barrier can act as an effective...

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

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

...about, and Straw Bale SIPS are big winners in that arena. Straw is a natural and non-toxic material; raw wood and concrete are equally benign, so this could be ...

Frost in attic
Roof assemblies - renovation

Why is there frost in my attic? 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...

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

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...

Correctly installed Triple pane south facing windows on Ecohome's Demo House
Windows and doors

Installing doors & windows for the best performance in high efficiency homes, LEED & Passive House

...ater" - ensure that all openings are flashed and taped appropriately and to code so that water that wants to run downhill can do so rather than accumulate and t...

Air and vapour barriers

Aerobarrier home and attic air-sealing spray 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 ...

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!"

...and require makeup air. Houses that are fairly air tight and that have negative air pressure may cause flue gases to backdraft into your house, which can be of ...

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

How to choose a home-building contractor 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...

Natural Building Insulation Made of Grass - Eco-friendly, Green
Insulation and soundproofing

Non-toxic natural building insulation made of grass said, for some people this can be a necessity, or a home can simply be uninhabitable. Its hard to put a price on health, and the air in homes can typically b...

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

...agents ) Larsen truss walls can be made in a variety of thicknesses, which is a really nice advantage to the design as it can be done in a way that has the be...