Rigid foam Mold / Discussions

Can you install foam boards directly against basement walls?

...rigid foam to Install two inches of rigid insulation board directly against concrete. A mold expert told me to put the board on top of the framing, not directly...

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

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

...rigid XPS foam board insulation held in place with the special plastic pegs (since the poly will not allow adhesive to affix it to the wall), blue sheathing tap...

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

Why is there condensation in between 1.5" polyiso board and roxul insulation?

...foam. In front of the wall I frame to buy for walls and insulated with Roxul insulation Batts I went to go do some electrical work today and pulled back a bath ...

Posted by Tyler Norrie Feb. 9, 2021, 2:32 p.m. Basements improvements 0 Responses

Can you put foil covered foam panels inside a framed wall?

...Rigid foam insulation panels And to answer your question, yes, you can put foil based rigid foam panels on the interior of framed walls in *certain* climates....

Posted by William McCart Feb. 22, 2021, 12:38 p.m. Insulation and soundproofing 3 Responses

What is the best way to insulate my basement?

...Foam Board Insulation over the bare concrete and leave the framed walls insulated as the are? 2. Install Foam Boards over the concrete and replace the foam in...

Posted by Chris Rogers Oct. 27, 2019, 11:23 a.m. Foundation and basement improvements 1 Responses

What is the best way to insulate a crawlspace to keep humidity down and stop odors?

...Mold An inch of foam on crawlspace walls is good, but 2 inches would be better. Think about the returns – you’ll be doing the same amount of labour but you wi...

Posted by Dave Bell Oct. 24, 2019, 3:57 p.m. Crawl spaces 3 Responses

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

...foamboard to my basement foundation walls. From all of my reading it says that your basement foundation walls can only dry to the inside. If I put foamboard on ...

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

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

...rigid EPS and see if you can make it continuous with the wall insulation below it. If you install several layers of EPS it will function just like a SIP wall, t...

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

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

...foam board insulation with circumscribing spray foam in each rim joist (or maybe using purely spray foam to cover each rim joist). However, I can't tell whether...

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

How do you fix a moisture problem in a finished basement?

...foam insulation on basement walls is not a bad one. However, spray foam itself is a vapour barrier, so you wouldn’t need to apply a typical 6 mil polyethylene v...

Posted by Margo MACFARLANE Oct. 28, 2019, 10:24 a.m. Foundation and basement improvements 1 Responses

Which is the best basement insulation?

...rigid foam, read more here – Choosing the right Rigid Insulation Panels And yes, I would say running the Rigid insulation from the bottom of the concrete an...

Posted by Alex Kesheshian April 23, 2020, 12:29 a.m. Basements 1 Responses

Can you use Foam boards on basement walls to stop condensation?

...foam board and still be a problem? Hoping to just be able to apply foam to regulate the concrete temps and prevent inside warmer air from touching the concret...

Posted by Chad Johnson Dec. 21, 2019, 7:59 p.m. Basements improvements 3 Responses

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

...foam rigid insulation panels, read more here . On top of that you could apply a cement board that can be parged or left as is. Let me know if any of those optio...

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

Is polyiso board or styrofoam best for insulating when finishing a basement in CO?

...mold when you insulate your basement The difference between Polyiso, EPS & XPS rigid insulation boards I have a few questions that will help us pin down t...

Posted by Evan B. Nov. 21, 2019, 8 p.m. Basements improvements 1 Responses

What is the best way to deal with a drop ceiling in a high humidity room?

...rigid foam insulation and then faced fiberglass batts and then plywood subfloor of the outdoor deck. The rigid foam was not sealed (no air barrier) and this p...

Posted by steve Roberts Dec. 24, 2019, 8:01 p.m. Walls and ceilings - interior surfaces 1 Responses

How do I insulate my half below grade basement?

...rigid insulation against the wall to keep the moisture out. You have probably seen a few of the following pages but I’ll add them in case, and for anyone else...

Posted by tom mckeand Oct. 14, 2019, 11:01 p.m. Basements improvements 1 Responses

How should I insulate basement Walls in climate zone 5?

...mold free? the exterior of the basement walls has 2” of foam on them so any warmer air from finished basement would permiate through mineral wool to the wall bu...

Posted by Chad Johnson March 25, 2019, 8:33 p.m. Basements improvements 1 Responses

Which insulation do I use for interior walls of a framed in bunker?

...rigid foam etc. Here is our page on Choosing the right insulation , that will help you understand where each insulation works best no matter what the structure ...

Posted by Dale Klubertanz March 23, 2021, 10:38 a.m. Insulation and soundproofing 1 Responses