Foam / Discussions

Can foam boards cause a chemical reaction?

...foam - specifically mineral wool insulation - read more here: The difference between Polyiso, EPS & XPS Foam Insulation & Styrofoam Check out the following ...

Posted by Joel Clipsham Sept. 30, 2021, 7:17 a.m. Healthy indoor air quality 1 Responses

Can you spray foam a house from the outside?

...foam with foil directly under the siding. Someone recommended removing the sheathing and doing spray foam from the outside. It seems we could also drill holes a...

Posted by Joan Lawrence July 11, 2019, 7:17 p.m. Wall assemblies - renovation 3 Responses

Can I spray foam insulate from the outside?

...foam properly from the outside you would need to see bare studs, and spray foam in the stud cavities. So that would leave you without sheathing, so you would ne...

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

What insulation is there for a shipping container home that isn't spray foam?

...foam when trying to prevent condensation in the wall assembly of a 40 foot shipping container home?

Posted by Jim bo April 1, 2021, 3:37 a.m. Tiny house 0 Responses

Can I put foam boards up after I frame a basement?

...foam board in between my studs and tac nail it? You could put foam between the studs, but why not batts? Were you choosing foam due to reading here about using ...

Posted by Paul Hylan Dec. 27, 2021, 11:53 p.m. Basements improvements 1 Responses

Spray Foam for basements, which of the different types are best environmentally?

...foams available some of which mention climate change and environmental concerns - but we're wary of greenwashing, so I would value your opinion as to spray foam...

Posted by Rose Adams Jan. 9, 2020, 9:33 a.m. Insulation and soundproofing 1 Responses

What is the best foam board insulation under drywall?

...foam board insulation attached to the stud and seams taped. Then I would set 1/2" drywall on top of the foam and attached with long screws. Does this sound li...

Posted by Wesley Pracht Jan. 11, 2020, 8:10 p.m. Wall assemblies - renovation 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

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

...foam reccomended or is there something I am missing? Any help is grately appreciated! Simon Spray foam in this case will provide everything you are looking ...

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

Can you install foam boards directly against basement walls?

...foam on the inside for now does the block need to be painted before I put the foam against the block are waterproof and what with. Hey Rocky, At 2 inches thic...

Posted by Ted Gorab Oct. 3, 2019, 6:09 p.m. Basements improvements 16 Responses

Fill gap between wood stud wall and closed cell foam or fill the stud bays?

...foam on the concrete walls. The stud walls are 3-5" " from the close cell spray foam. I can either (try to) pack the void between the wall and the uneven surfac...

Posted by B Mac Dec. 13, 2021, 6:31 a.m. Wall assemblies - renovation 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 install 5" of XPS rigid foam on interior basement walls?

...foam glued to concrete then wood glued to foam will last. The stud wall can be screwed to the ceiling and the floor, which makes the foam adhesive obsolete on...

Posted by Sean MacDonald June 14, 2021, 10:42 a.m. Foundation and basement improvements 8 Responses

Which is the best foam board insulation to put against poured concrete basement walls?

...foam (Expanded Polystyrene) and XPS foam, see the differences here – The difference between Polyiso, EPS & XPS Foam Insulation & Styrofoam But here’s the sh...

Posted by Patricia Roberts Dec. 28, 2021, 6:18 p.m. Insulation and soundproofing 3 Responses

Do I need to spray foam the ceiling of my crawl space to help winterize it?

...foam, so if you go that route I would pitch you the idea of choosing a spray foam with blowing agents that reduce greenhouse gas emissions . And the last poin...

Posted by Sheilagh Thompson Jan. 21, 2021, 1:48 p.m. Crawl spaces 1 Responses

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

...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 tape on foam ...

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

Is a vapor barrier necessary under a concrete slab with foam insulation and if so, where does go?

...foam - with the added benefit of making sure that at least 2" of foam has zero possibility of getting moisture back in once the concrete slab has dried out beca...

Posted by Grady 22 Aug. 17, 2019, 12:19 p.m. Air and vapour barriers 3 Responses

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

...foam board to the inside of the wall or leave a gap for air? I understand mold will not grow on the board but I am afraid that there are very small cracks in th...

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