Basement vapour barrier / Discussions

Will spray foam on basement walls prevent condensation?

...vapour barrier is preventing it from drying. Despite it being allowed (and usually insisted upon), putting vapour barriers on basement walls does nothing good, ...

Posted by Michael Scott April 12, 2021, 9:17 p.m. Basements improvements 3 Responses

What is the best way to do a basement renovation?

...basement renovations? Why are Basements Moldy? How to Fix & Prevent Mold in Homes As for vapor barriers on basement walls, as you would read in the page abo...

Posted by BIG FOOT Nov. 18, 2020, 9:33 a.m. Basements improvements 1 Responses

What is the best way to finish basement walls?

...basement was finished with tar paper on foundation wall, 2 by 2 framing with fiberglass insulation, vapour barrier and drywall. Everything I've researched inclu...

Posted by Aram Scaram Jan. 21, 2021, 5:13 p.m. Basements improvements 3 Responses

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

...vapour barrier on the inside basement walls. If the walls were removed (including tar paper, insulation, vapour barrier and drywall) would this be the best solu...

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

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

...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 vapour barrier on th...

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

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

...vapour barrier afterwards/ that would actually be a bit better. There was usually a poly vapour barrier installed after the insulation and stud wall seemingly t...

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

How do insulate a basement slab that is sloped ?

...vapour barrier, add 2" xps and then subfloor. Is there a better way to do this ? Thanks for your help ! The best way to insulate a basement floor that is no...

Posted by Louis-François Lapointe Nov. 11, 2020, 10:34 a.m. Basements improvements 1 Responses

How do I insulate my half below grade basement?

...basement is half above grade. I have seen in the CMHC book a scenario where a vapour barrier starts on the concrete, just above grade height, goes down the co...

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

Do you have recommendations for radon sealing basement concrete & installing new flooring?

...barriers for below slab floors How much insulation does a basement floor need? Basement renovations: How to prevent mold when finishing basements

Posted by M N Sept. 1, 2020, 2:20 p.m. Basements improvements 1 Responses

Basement reno - How do I effectively insulate my basement?

...vapour barrier laytex paint. Which EPS thickness should I go with? Concrete Slab: DMX aiflow dimple mats +(3/4" EPS, needed? ) +OSB +flooring of choice Head...

Posted by Steve J Feb. 13, 2019, 10:25 p.m. Foundation and basement improvements 2 Responses

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

...vapour barrier and fiberglass insulation from the basement of our home built in 1960 in Ontario in climate zone 5. Outside the home I have jack-hammered and rem...

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

Do you need ventilation in a cold storage pantry in a high performance house?

...basement, underneath our front porch. The cold room is inside the foundation, with rigid foam insulation external to the foundation and vapour barrier. It is in...

Posted by Brad Sullivan April 12, 2021, 1:13 a.m. Ventilation 1 Responses

Why do you shim up basement walls?

...vapour barriers are a mistake, while air barriers are extremely important and I should have them. But apparently air barriers won't help solve anything in the b...

Posted by t b March 2, 2021, 3:17 p.m. Basements improvements 4 Responses

How should I insulate basement Walls in climate zone 5?

...basement walls roughly 3” away from concrete and then place mineral wool between the studs. I do not plan to apply any vapor barrier to the concrete or between ...

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

Should I insulate my basement ceiling?

...basement. we recently learned our basement wasnt insulated properly, and probably done to hide some flaws. In response we’ve decided to rip it all out and do an...

Posted by Nina Hartt March 21, 2019, 8:23 a.m. Basements improvements 1 Responses

Should I remove the plastic sheet in my cellar?

...basements are moldy and how to prevent mold during basement renovations If you have cut open the poly vapor barrier on the basement walls then that is letting...

Posted by Justin D'Arcy Dec. 4, 2020, 12:13 p.m. Basements improvements 2 Responses

Where is the correct vapor barrier location in Chicago?

...barrier also be the air barrier? There is a difference between the two, read more here first – The difference between air barriers and vapor barriers If you...

Posted by Joel Peerson Jan. 31, 2021, 7:31 p.m. Air and vapour barriers 2 Responses

How can I get rid of moisture between the vapor barrier and the insulation in a basement?

...vapour barrier in the section of the basement that I plan to drywall. I did install a vapour barrier in the Aquarium section. The area with no vapour barrier ...

Posted by David Mitchell Aug. 14, 2018, 6:32 p.m. Basements improvements 30 Responses