How to insulate basements / Discussions

Is there any risk to a concrete foundation from adding interior insulation?

...tor toured my 100-year old house near Toronto and told me that they wouldn't recommend installing any insulation in the basement because it could cause freeze-t...

Posted by Drew Tozer Jan. 5, 2021, 12:57 p.m. Basements improvements 4 Responses

How do you improve an old block foundation with no insulation or exterior moisture barrier?

...to be able to escape. That's why its wet and moldy. Read here first - Why basements are moldy and how to insulate basements properly That page will explain,...

Posted by Wilhelmina Lange March 11, 2021, 4:19 p.m. 2 Responses

With a raised house how should I insulate underneath?

...to lay poly on the ground? my house backs up to a canal leading to a river and there is no draiage issues. Thank you in advance. I can’t speak to where you coul...

Posted by Kevin Marmillion Feb. 1, 2021, 11:43 a.m. Basements improvements 3 Responses

What is the best way to insulate a Multi-material wall?

...to concern yourself with too much and no need to switch methods. You could look over this page about How to insulate basements so they don't develop mold whic...

Posted by Steve J Sept. 29, 2020, 10:15 a.m. Wall assemblies - renovation 7 Responses

How much insulation should I install underneath my concrete slab in my basement?

...to yours. The image on the left is uninsulated, and you can see by the extended colour gradient below the concrete from warm to cold is evident to a depth of ma...

Posted by Scott Antonation Sept. 27, 2019, 1:06 a.m. Slab on Grade 3 Responses

What is the best way to reduce humidity in a basement?

...to help choose products as well as how to finish your basement if you do decide to do some more work on it. Why are Basements Moldy? How to Fix & Prevent ...

Posted by Robert J. Pierson Oct. 17, 2019, 10:45 p.m. Basements improvements 2 Responses

Is EPS or XPS better for use in basement rim joists? Should faced or unfaced foam boards be used?

...to the 2nd paragraph - I am being to told that the XPS proposed for the outisde of our 35,000 ft² 3-story multi family building has a GWP comparable to EPS. I a...

Posted by Thomas Dispenza Sept. 8, 2019, 12:43 a.m. Basements improvements 6 Responses

What is the best way to Insulate a basement and floor joists that are embedded into the concrete?

...Toronto. We had some water issues and I've opened up the walls where I found some mould to see that the previous owners installed batt insulation directly onto ...

Posted by David Pereira April 28, 2020, 10:34 p.m. Foundation and basement improvements 2 Responses

Should I bother testing for radon in a gutted and uninsulated house?

...how to renovate basements so they won't develop mold, that will show you how to insulate a floor and install a radon barrier membrane at the same time. I hope...

Posted by Luba Sharapan March 27, 2021, 12:04 p.m. Radon in Homes - Mitigation 3 Responses

Should I install a poly moisture barrier before the rigid foam board against a basement wall?

...to get inspectors to sign off on your work. Because it is laid out in building code, they often won’t allow you to build without a vapour barrier even though ...

Posted by DONandCATHY Crenna Dec. 14, 2020, 2:21 p.m. Basements improvements 3 Responses

How do you fix high humidity levels in a basement?

...insulated basements are a heat sink, so best is to make sure they are both done. The only reason to insulate the joists above your head in the basement is if yo...

Posted by JR Tadinac Aug. 21, 2019, 11:26 a.m. Healthy indoor air quality 3 Responses

Should I put foam boards right against my basement wall or leave an air gap?

...to stop the block from freezing and thawing? We have funds at the moment but don't want to pour a ton of money into it. I'm just trying to prevent any further d...

Posted by Elijah Hargett Jan. 9, 2021, 5:31 p.m. Foundation and basement improvements 4 Responses

Can you install foam boards directly against basement walls?

...Basements Moldy? How to Fix & Prevent Mold in Homes Preventing Mold when you Insulate your Basement Building Better Basements: How to Insulate your ...

Posted by Ted Gorab Oct. 3, 2019, 6:09 p.m. Basements improvements 15 Responses

Where can I purchase non-toxic interior wall panels near Laval, Quebec?

...tomatically inflates the balloon to block the pipe, then pings your phone to tell you about it. Then you should read this page about how to build basements prop...

Posted by Louise Goulet Nov. 30, 2019, 1:14 p.m. Basements improvements 1 Responses

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

...to read - Why basements are moldy and how to prevent it Thanks for the great info Mike. I am planning to use a good dehumidifier as part of my basement solu...

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

How would I rectifiy problem of foundation wall cracks with finished basement?

...to insulate the interior, so is there anyway you can work a bit on the exterior? If so, I would propose the following – either get an excavator to dig down to...

Posted by Terry P July 22, 2020, 7:07 p.m. Basements improvements 3 Responses

Is it not structurally dangerous to smash a concrete floor for a drain?

...to be perfectly smooth to attach the mineral board to it? I suspect parts of the wall, or maybe all of the wall, is not smooth. It's going to be irregular stone...

Posted by t b March 2, 2021, 3:18 p.m. Waterproofing and drainage 2 Responses