XPS / Discussions

Can I purchase XPS made with HFOs?

...XPS insulation have switched blowing agents yet. So as it stands, any XPS rigid insulation board you purchase will still have an impact several hundred times wo...

Posted by Kate Noblio Dec. 14, 2019, 12:35 p.m. Insulation and soundproofing 2 Responses

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

...XPS, because the foil itself is a vapour barrier. We always choose (and recommend) EPS over XPS due to the fact that XPS has much higher green house gas emiss...

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

Can you use polyiso insulation on the exterior of a wall behind cedar siding on the west coast?

...XPS ? Polyiso starts to fall off in R value around 5-10C , but its not a catastrophic failure, and given your use of Celsius and ‘West Coast’, I’m thinking you ...

Posted by Iain Matheson Jan. 28, 2020, 10:38 p.m. Wall assemblies - renovation 1 Responses

Do I need to insulate under the footings of a frost protected shallow foundation?

Hello, I’m designing a FPSF in Southern Vermont (AFI 2300). I want to fully insulate the radiant slab by including 4″ XPS under the footings but this seems t...

Posted by Jon Piana April 15, 2019, 8:45 a.m. Slab on Grade 1 Responses

What is the best way to insulate embedded joists in a basement Montreal Home?

...XPS ridgid boards for the wall and floor. ( Top of slab) Whats the best approach. Thank you We would advice against spray foaming any rim joists that are ...

Posted by Emil Idf Jan. 7, 2020, 8:34 p.m. Foundation and basement improvements 1 Responses

How do I insulate my half below grade basement?

...XPS with 4" studs and roxul insulation to give around r24 (local code). This is expensive and I'm not 100% on board because the basement is half above grade. ...

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

Can Rockwool be installed over Type II EPS?

...XPS Foam Insulation & Styrofoam Sometimes adding XPS or EPS rigid foam to the outside of a house can cause problems since it can trap moisture. That said, it ...

Posted by Brian Bonnell March 30, 2020, 11:04 a.m. Wall assemblies - renovation 1 Responses

Which type of exterior insulation to use on a house?

I want to first off thank you for taking the time to read this and hopefully provide some help. I've watched the great videos on here and just want to ensure I...

Posted by Trevor Marshand May 26, 2020, 1:16 p.m. Insulation and soundproofing 0 Responses

Can you install foam boards directly against basement walls?

...XPS insulation boards (which are a vapor barrier) you would be ensuring that the wall cannot dry to the interior either, so what you would have is an ideal mold...

Posted by Ted Gorab Oct. 3, 2019, 6:09 p.m. Basements improvements 4 Responses

Halo Exterra rigid exterior insulation - has anyone work with it?

...XPS or Mineral Wool to prevent rot in building envelopes. Hi Mike I live an hour north of Winnipeg on lake Winnipeg. It's a family cottage build in 1927 whi...

Posted by George Shannon Jan. 21, 2020, 3:39 p.m. Insulation and soundproofing 3 Responses

What type of Insulation can I use on the exterior of my home?

...XPS Foam Insulation & Styrofoam There are rigid insulation boards that will act as the insulation only, insulation and air barrier only, or all in one - insul...

Posted by Scott Muller April 18, 2019, 2:19 p.m. Wall assemblies - renovation 6 Responses

Can you add external insulation to a brick home?

...XPS Foam Insulation & Styrofoam Rockwool isn’t harmed by moisture and it lets moisture move right through it, which is a very good thing to use for an exterio...

Posted by Rachel Kaiser April 2, 2020, 9:11 a.m. Wall assemblies - renovation 1 Responses

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

...XPS below a slab, the added R value of XPS just isn’t worth the added cost – meaning EPS is cheaper per R value, and XPS manufacturing has very high green house...

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

What do I in my basement where new insulation meets old?

...XPS foam has higher greenhouse gas emissions , but it works better for air and vapour protection so in this particular case I would probably go pick up a few sh...

Posted by Steve J July 20, 2019, 10:01 p.m. Basements improvements 2 Responses

I want to insulate the outside of my house, which type of insulation do you think is best?

...XPS foam insulation at about 1 inch thick will act as a vapour barrier, EPS foam insulation will start to act as one at about 2 inches, and polyisocyanurate (th...

Posted by Joe F Nov. 15, 2017, 10:34 a.m. Wall assemblies - renovation 7 Responses

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

Eight years after our house was built, we noticed that the MDF baseboards in our finished basement became discoloured and swollen from potential moisture. We r...

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

What is the best way to insulate my basement?

I have an unfinished walkout basement with 3 sides at or below grade. The two sides of the house have poured concrete step foundation down toward the rear with...

Posted by Chris Rogers Oct. 27, 2019, 11:23 a.m. Foundation and basement improvements 0 Responses

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

We live in Bellingham WA and our basement was built in the 70's. It has high humidity (70-80%RH) although I don't see any visible damp anywhere. The washer/dry...

Posted by Frank Cooper Oct. 17, 2019, 10:45 p.m. Basements improvements 2 Responses