Foam boards/ Discussions

Can foam boards cause a chemical reaction?

...foam- specifically mineral wool insulation - read more here: The difference between Polyiso, EPS & XPSFoamInsulation & StyrofoamCheck out the follow...

Posted by Joel Clipsham Sept. 30, 2021 Healthy indoor air quality 1 response

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

...foamboard and still be a problem? Hoping to just be able to applyfoamto regulate the concrete temps and prevent inside warmer air from touching the concrete ...

Posted by Chad Johnson Dec. 21, 2019 Basements improvements 3 responses

Can you install foam boards directly against basement walls?

...foamboards靠墙立柱墙,你不苍白t to have organic material exposed to moisture, particularly having a source of moisture on one si...

Posted by Ted Gorab Oct. 3, 2019 Basements improvements 22 responses

What is the best foam board insulation under drywall?

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

Posted by Wesley Pracht Jan. 11, 2020 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 putfoamboard on ...

Posted by Tim Hanrahan Aug. 20, 2020 Basements improvements 6 responses

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

...foamboard in between my studs and tac nail it? You could putfoambetween the studs, but why not batts? Were you choosingfoamdue to reading here about using ...

Posted by Paul Hylan Dec. 27, 2021 Basements improvements 1 response

Is it OK to put 1 inch of EPS under vinyl siding with no wall insulation?

We have a cabin in the Bershires of Massachusetts ceilings and floor have been insulated, dense pack celluose in ceilings 4 in Amivic graphite EPS under floors....

Posted by Roger Smith Nov. 12, 2019 Wall assemblies - renovation 7 responses

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

...boardsfor installation in my basement rim joists, should I be looking for faced or unfacedfoamboardsto install there--and which surface of theboards(faced...

Posted by Thomas Dispenza Sept. 8, 2019 Basements improvements 6 responses

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

...foamboard 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 Foundation and basement improvements 4 responses

我应该把2”泡沫薄熙来ard under, around, AND on top of concrete slab?

...foamboard on top of the slab? Or is the 2"foamboard under the slab + the 2"foamboard vertically around sides/edges of slab and subfloor enough to counter ...

Posted by Insinuendo Insinuendo Aug. 5, 2022 Slab on Grade 3 responses

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

...foamboardsI've been looking at are, Kingspan Insulation R-10 2in*4ft*8ft unfaced polystyrenefoamboard from Lowes and theFoamular 150 2in*4ft*8ft R-10 unfac...

Posted by Patricia Roberts Dec. 28, 2021 Insulation and soundproofing 3 responses

What kind of foam board should I use to insulate rim joists in Wisconsin?

...foaminsulation, have a look there and we can discuss more if you like. The difference between Polyiso, EPS & XPSFoamInsulation & Styrofoam

Posted by Matt Kime Sept. 12, 2021 Basements improvements 1 response

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

...foamboard 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 onfoam...

Posted by DONandCATHY Crenna Dec. 14, 2020 Basements improvements 3 responses

Which exterior insulation is best to create at thermal break in an bungalow in Alberta?

Do you have any advice with spray cork renders vs. fully insulating the outside of our home with rockwool orfoamboard and new siding. We need a cost effective...

Posted by Rebekah Barnes Jan. 17, 2020 Wall assemblies - renovation 1 response

What's the difference between EPS and GPS insulation?

...foambut you can use it anywhere you would use EPS rigidfoaminsulation. EPS is typically rated at abou R4 per inch where GPS is typically rated as having R5 i...

Posted by Ronald Tetrault Feb. 3, 2021 Insulation and soundproofing 1 response

Do frost lines where studs are on a wall show a failure of spray foam insulation?

...foamrather than a failure. The wood studs will transfer far more heat than the Spray PolyurethaneFoam(SPUF), so what you are seeing could actually be an indi...

Posted by Gerald Crozier July 22, 2019 Insulation and soundproofing 1 response

What is the best way to install 5" of XPS rigid foam on interior basement walls?

...foamas well to prevent moisture infiltration. Also notice on that page that we raise the bottom plates of the framed wall by placing it on small blocks offoam...

Posted by Sean MacDonald June 14, 2021 Foundation and basement improvements 8 responses

What is the best exterior rigid foam insulation for under a deck?

...foampanels, we would recommend EPS rigidfoaminstead of XPS as it is cheaper and less environmentally harmful, read more here about the performance and charac...

Posted by Andrew Cherubini March 21, 2021 Insulation and soundproofing 3 responses