Leakage / Discussions

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

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

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

How do you install rigid insulation to the outside of a brick house"

...leakage from the equation (as explained in that article above) stopping vapour diffusion becomes a bit more manageable. One option may be to apply vapour barrie...

Posted by Gordon CASWELL Dec. 13, 2019, 11:38 a.m. Wall assemblies - renovation 1 Responses

How do insulate the outside of a log home?

...leakage , log homes are not known to be particularly airtight. But as for where you install the house wrap, you can’t go really wrong either way, but you would ...

Posted by Michael Hickey Aug. 2, 2018, 6:03 p.m. Wall assemblies - renovation 1 Responses

Does strapping’s nailing jeopardize membrane integrity?

...leakage that leads to depends on a few factors. The membrane you choose would be a factor, so I would see this page first – Choosing the right house wrap / WR...

Posted by GUY DUPONT Nov. 26, 2021, 11:12 p.m. Air and vapour barriers 3 Responses