Leakage / Discussions

How do you make an airtight house envelope?

...leakages and openings. I feel it is not true envelope and will not make it as efficient house as it can be. I'm looking for some guidance here as after hours of...

Posted by Valeriy Kraydman Dec. 1, 2020, 2:52 p.m. Air and vapour barriers 1 Responses

Is There a Difference Between an Air Barrier and vapor barrier?

...leakage rather than stopping it, even the highest quality brand new home will still leak air, it’s a fact of life. If possible, it would be wise to have it insp...

Posted by Sherri Mccormick Aug. 17, 2018, 3:24 p.m. Roof assemblies - renovation 3 Responses

What type of hrv system should I put in a 4 year old home?

...leakage the better, and yes, you should have an HRV to remove moisture and provide fresh air. I would say you are best to start by familiarizing yourself with...

Posted by Ellen Murray Zappone Sept. 1, 2021, 4:35 p.m. HRV and ERV 1 Responses

Does a low radon air reading necessarily = low radon in well water?

...leakage test, its not easy to estimate the rate of air exchange, and draw any definitive conclusions about how much radon is possibly being vented, and how much...

Posted by Steve Bull Jan. 4, 2020, 1:45 p.m. Radon in Homes - Mitigation 5 Responses

Should you keep duct work out of the attic?

...leakage and energy loss As for your other question, yes, duct work should be kept within the conditioned space. Running heating vents through a frozen attic w...

Posted by Frank Liu July 23, 2020, 8:53 a.m. Ventilation 1 Responses

How do you stop air leaks in an old 1950's house?

...leakage through walls and ceilings is responsible for a large percentage of the heat loss and energy costs of a home, it is wise of you to try to deal with that...

Posted by Don Fraser Sept. 3, 2021, 3:22 p.m. Air and vapour barriers 1 Responses

What are the most cost-effective green building strategies in new home construction?

...leakage can account for 1/3 of heat loss in a home. The best type of windows (thermal conductance, transmittance, solar gain, etc.) – another window question ...

Posted by M T Nov. 4, 2019, 11:07 a.m. Concept and design 3 Responses

Why do you shim up basement walls?

...leakage through walls that would be stopped by the addition of an air barrier. I also can’t see it doing much about mice, bugs perhaps if you do a superbly exce...

Posted by t b March 2, 2021, 3:17 p.m. Basements improvements 4 Responses

What is the best way to frame window openings when adding exterior insulation?

...leakage rate to about 0.6 ACH (here is our air barrier installation video ). As for ideal window placement within a wall assembly, if you are looking for the ...

Posted by Anwas Qwelten May 30, 2019, 8:16 p.m. Windows and doors 1 Responses

Does paint work instead of a poly vapour barrier?

...leakage.

Posted by Bill Fletcher May 6, 2020, 1:46 p.m. Air and vapour barriers 1 Responses

How do you know when its time to replace windows?

...leakage. We would recommend taking off the trim boards and inspecting between the window and the rough opening (the wall framing). If it looks like there is wat...

Posted by Ted Dec. 11, 2017, 12:50 p.m. Windows and doors 1 Responses

In the winter should you heat a low/dirt floor crawl space with a furnace vent?

...leakage , moisture damage and mold . This page here will have most of the answers you need – Best Practices for Insulating Crawlspaces So here are a few que...

Posted by janis hobson Dec. 11, 2019, 3:17 p.m. Crawl spaces 1 Responses

How do I seal the air barrier at the top of the exterior wall?

...leakage. Hello Emmanuel, Thank you for your suggestion! It does make sense, but unfortunately, in my case, it can't be done because the OSB covers the two plat...

Posted by Nicolas Jolicoeur Jan. 3, 2022, 11:05 a.m. Air and vapour barriers 5 Responses

What is the process to seal a house using Aero barrier spray?

The aero barrier will not work in the vertical plane. Can you explain this concept? the vertical plane need another method to seal? The Aerobarrier air barrier...

Posted by Santiago Pacheco Feb. 13, 2020, 11:06 a.m. Air and vapour barriers 3 Responses

What do I in my basement where new insulation meets old?

...leakage and thermal bridging, so if you can at least insulate there then you would be ahead of the game. That can be done a few ways – either you can spray foam...

Posted by Steve J July 20, 2019, 10:01 p.m. Basements improvements 2 Responses

What is your opinion about building a garage on posts (screw piles)?

...leakage, so be sure to incorporate an effective air barrier into the design. Given that it is a floor and will need to be insulated before a sub-floor is adde...

Posted by Les P Dec. 11, 2017, 2:21 p.m. Foundations and Basements 1 Responses

Can I put a breathable peel and stick weather (air) barrier on the inside walls and ceiling?

Here is my problem: I have polyurethane spray foam inside the assembly cavity of my walls and unvented flat roof ceiling. It's impossible to air seal all the j...

Posted by Anomika Singhn Oct. 1, 2018, 9:56 p.m. Air and vapour barriers 1 Responses

Improving the efficiency of a home built in 1978 during renovations, do I need an HRV?

...leakage in your home . If you are improving the envelope and making your home more airtight , with luck you will get to the point where you need ventilation sys...

Posted by joe cruikshank Feb. 8, 2020, 12:08 p.m. HRV and ERV 1 Responses