Seal / Discussions

What is the best way to seal around windows?

...seal it with tape on the inside? Any suggestions will help. A good place to start is our page about How to Install Windows & Doors Correctly that includes a DIY...

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

What's the best way to seal a crawl space and insulate?

Hi I was wondering what's the best way to seal a crawl space and insulate? Currently it is a vented space. Should the vents be closed permanently? The floor jo...

Posted by Steven Johnston Feb. 23, 2021, 12:35 p.m. Crawl spaces 1 Responses

How do you seal windows from the exterior for water and air but not create a vapor seal?

...seal. Your typical roll of low-priced building tape becomes brittle in a fairly short period of time and is prone to cracking and coming unadhered. When air-sea...

Posted by Piyush Prince Nov. 7, 2018, 12:10 a.m. Windows and doors 1 Responses

Should you seal all rods and penetrations for a radon barrier?

Is it worthwhile to plug all rod holes with hydrolic cement and also apply a product like Radon seal to provide a water and gas barrier before installing xps f...

Posted by D H Dec. 25, 2020, 9:08 p.m. Healthy indoor air quality 1 Responses

How to air seal & ventilate a partial gut reno of a 1901 house?

...sealed as we can, but we are not demo-ing down to the studs in the front bedrooms on either the 2nd floor nor the attic. The existing plaster there was in good ...

Posted by Zach Zill Feb. 7, 2021, 4:33 p.m. Air and vapour barriers 0 Responses

Is this a good way to insulate drafty windows?

...seal around the rough opening. Another thing you are probably experiencing is thermal bridging in the floor as concrete would extend from under your feet to t...

Posted by Robert Schmidt Feb. 6, 2021, 5:47 p.m. Windows and doors 2 Responses

How do you seal up an old fireplace chimney?

...Sealing up an unused brick fireplace chimney will save money on your heating bills and increase your comfort level at home.In addition to letting in cold, these...

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

How do you insulate a crawlspace with dirt floor?

We have a cottage with a crawl space near Halliburton, Ontario,Canada. It has a solid block perimeter but has a dirt floor. Also, there is a very large rock un...

Posted by sal Bellicoso Oct. 30, 2019, 4:56 p.m. Crawl spaces 2 Responses

How do you polish a concrete slab to be a finished interior concrete floor?

...sealers for polished concrete floors

Posted by Betsy Lund May 20, 2020, 2:13 a.m. Flooring and stairs 1 Responses

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

...seal all the joints and sistered joists with caulk or sealant because where the SPF meets the joints, the seam is thin and air goes right though the SPF and ent...

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

Can basement walls to dry to the inside with foam board?

...sealing it on top and bottom? I did air seal all sill plates already and installed new windows. My dehumidifier is an 80gallon heat pump hot water heater whic...

Posted by Tim Hanrahan Aug. 20, 2020, 12:34 a.m. Basements improvements 6 Responses

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

...seal my 50's house after doing renovation work. The missing part is how do I deal with recessed lighting and electrical boxes that penetrate the walls and ceili...

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

How should I install XPS insulation in a basement?

...seal the rim joist from internal moisture. If I can run the XPS straight up behind the new inner framed wall and seal it to the first joist (Option 2) do I need...

Posted by Ken Hunold Dec. 27, 2020, 7:22 p.m. Basements improvements 0 Responses

Can I spray foam insulate from the outside?

...seal up and insulate the wall cavity once exposed. I expect to see insufficient or no insulation. After applying spray foam what is best to apply (tyvek vs. som...

Posted by Kurt Klischuk June 6, 2019, 8:56 a.m. Wall assemblies - renovation 3 Responses

I have many issues with my house where should I start?

...seal the house, then insulate the outside basement wall, to the roof, then re-side the house, and insulate roof. Or insulate inside basement walls, and insulate...

Posted by Bryan Squirrell Sept. 29, 2019, 3:08 p.m. Wall assemblies - renovation 1 Responses

Is spray foam a good way to insulate a house from the exterior?

...seal / vapor seal behind the drywall - this seems neccesary for other types of insulation. Does anyone have experience with re-insulation from the exterior of...

Posted by Simon Levitt Dec. 21, 2020, 2:14 p.m. Wall assemblies - renovation 1 Responses

How do you insulate a cottage crawlspace and install radiant floor heat?

...seal the complete cottage foot print when there is not enough room to get under the building? How would moisture affect this area and how would be the best way ...

Posted by Todd hall June 28, 2020, 8:36 a.m. Crawl spaces 1 Responses