Sealing air leaks / Guides

Air and vapour barriers

Aerobarrier home and attic air-sealing spray

...Air-sealing with Aerobarrier for renovations: This is a relatively simple solution to air sealing an old home that is being put through an extensive energy re...

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?

...air leakage but, more importantly, it’s a way to find air leaks and fix them. Fixing air leaks is ‘low hanging fruit’ in terms of improving the energy efficienc...

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

...sealing windows against air-leaks relies on flexible seals being fitted between the frames and the framing, often called Air Sealing System Tapes , which are pa...

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 envelope, since it allows better control over indoor air quality . Airtightness also improves energy efficiency; indoor air leaks waste cooling power d...

Techniques for reducing sound transmission in buildings
Insulation and soundproofing

Controlling sound transmission in buildings

...leaks depends on the location of the electrical outlets and on whether there is sound-absorbing material in the cavity. Sealing is simple and does no harm. Ar...

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!"

...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 major concern. Po...

Condensation on windows in our homes - why is it there? - how to stop it?
Walls and Roofs

Condensation on windows is a pain but is it a problem & how to stop it?

...leaks! – Any pipes carrying water in the house, both delivery of hot and cold or heating and evacuation, should be checked for leaks and any leaks fixed promptl...

Crawlspace radon barrier installation for radon mitigation
Radon in Homes - Mitigation

Removing radon gas from basements and crawlspaces

...air rising , basement air will always find its way to upper floors to balance pressure as warm air escapes through leaks at the higher points of your house. I...

Balanced insulation levels in a green home
Efficient home design

Insulation in Green Home Building, a balanced approach to putting it where it does the most good

...Air leaks are responsible for a surprisingly large amount of heat loss, so plan your air barrier well in the design phase and be very meticulous with air sealin...

Frost in Attics: What causes Attic Ice? How to Fix it?
Roof assemblies - renovation

Why is there frost in my attic? Is ice in roofs a problem & How do I stop it?

...air leaks and add insulation. In the unfortunate situation of having no air barrier but a truss system that makes a poly air barrier impossible to install from ...

Carpenter ants are a common pest and nuisance to get rid of in homes
Pest control

Removing insects and rodents from your home, safely & humanely (by preference)

...leaks, or their arrival could be caused by air leakage. Warm air escaping from your house in winter will condense at those openings as it cools and leave moistu...