Leakage / Discussions

Should I test my home for radon gas?

...leakage in my home. What do you think? Yes, it's always a good idea to check the radon levels in your home, particularly if you're about to improve the airtight...

Posted by Mary Anne S March 5, 2019, 7:46 p.m. Radon in Homes - Mitigation 4 Responses

Do I need a standard 6 mil poly vapor barrier with dense cellulose exterior wall?

...leakage is visible from the inside. My question is if I install a poly barrier over the cellulose on the inside under the drywall, will I then cause vapor to be...

Posted by jeff Chormann May 1, 2020, 9:18 a.m. Air and vapour barriers 2 Responses

How do I create a complete air barrier using a vapour retarding primer?

...leakage. What it can be used for is to stop moisture diffusion, which means preventing the moisture in the indoor air from being absorbed into the drywall and p...

Posted by Mihai Wilson May 3, 2018, 10:15 p.m. Wall assemblies - renovation 1 Responses

Where to get good tape for taping air barriers?

You recommend using "brands of tape that are more suitable for extreme temperature changes. Siga,Delta Multi-Band and Air Stop are three examples of tapes with...

Posted by Frank Suerich-Gulick Sept. 12, 2020, 7:25 p.m. Air and vapour barriers 2 Responses

What is the best way to seal around windows?

I took off the trim around a sliding door during the summer in search of a pesky cricket, I found the cricket but I also found big gaps between window and fram...

Posted by Bryan Squirrell Oct. 8, 2019, 8:53 p.m. Windows and doors 1 Responses

What is the best way to do Stucco/E.I.F.S exterior window wraps?

...leakage around the frames), and water infiltration and damage if there wasn’t a strategy in place to avoid standing water and repel driving rain. Here is our pa...

Posted by Pat Estes July 17, 2020, 11:50 a.m. Windows and doors 1 Responses

How to insulate an apartment you don't own?

...leakage through or around the windows and doors ? That sounds like an issue that a landlord should be taking care of, though I’m not sure what sort of tenant ri...

Posted by Teresa Cunningham Oct. 21, 2019, 3 p.m. Wall assemblies - renovation 1 Responses

How do you attach exterior siding without affecting the air barrier on a passive house?

...leakage from additional fasteners used to attach insulation that you need to worry about. A nail or screw driven into wooden sheathing will pretty much fill its...

Posted by Scott Bowker July 16, 2018, 11:07 p.m. Wall assemblies - new construction 3 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

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

Is it possible to reconcile installing a wood stove in a airtight, super-insulated house?

...leakage. And yes, you are correct that the chimney section that passes through the roof will constitute one of the weaker points in your envelope, but it will n...

Posted by rick seward Dec. 23, 2018, 2:49 p.m. Wood stove and biomass heat 1 Responses

Do you have a diagram showing effect of winds on the pressure inside the house?

If the wind is from the south, where and how are positive pressures created in the home? Unfortunately we don’t have any diagrams to clearly depict the effects...

Posted by Bryan Bargen June 8, 2018, 5:20 p.m. Air and vapour barriers 1 Responses

How do I get rid of carpenter ants?

...leakage. Install mosquito nets at any openings like dryer vents and stove hoods. Keep the humidity level in the home low, down below 40% Relative humidity i...

Posted by Shawn B Nov. 14, 2017, 10:27 a.m. Pest control 1 Responses

How do you seal up an old fireplace chimney?

...leakage. Insulating chimneys from the outside: Cover the entire stack of bricks with a layer of rigid insulation (rockwool or expanded polystyrene) and half...

Posted by Gord Nov. 2, 2017, 10:06 a.m. Wood stove and biomass heat 3 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

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

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

What is the best way to insulate rim joists with EPS and batts?

...leakage while you still have access to them. If you were going to install batts in the cavities before rigid insulation boards, I would go with Rockwool since i...

Posted by Steve J July 18, 2019, 3:53 p.m. Basements improvements 1 Responses