Rigid foam / Discussions

Can foam boards cause a chemical reaction?

...foam may have a chemical reaction to other plastic products when used to insulate underground. Have you heard anything about that? Rigid foam panels are a petro...

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

How do you insulate an exterior wall from the outside?

...rigid foam insulation would provide you with a vapor barrier along with being the insulation. Specifically there is a ThermalWall EPS foam panel from Legalett t...

Posted by Stuart Seldon Feb. 11, 2021, 12:21 p.m. Wall assemblies - renovation 1 Responses

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

...foam itself is the vapour barrier. So if your plan was either 4 inches of Rockwool or 4 inches of Halo rigid insulation, I'd be less concerned that if you were ...

Posted by George Shannon Jan. 21, 2020, 3:39 p.m. Insulation and soundproofing 9 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

What type of insulation should I put on the exterior of my new home?

...rigid insulation used on the exterior of buildings is EPS foam, there are options but EPS would be the easiest go-to, and more easily accessible, read more here...

Posted by Alex Kesheshian April 23, 2020, 12:22 a.m. Wall assemblies - new construction 1 Responses

What kind of insulation do you recommend to put on my exterior sheet rock wall?

...foam or similar) similar to the ones they use all over Europe. I am looking for a pointer on where to start and find more information. Thanks, Insulating the ex...

Posted by Uwe Thomas May 22, 2020, 10 p.m. Insulation and soundproofing 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

What is the best way to insulate a 2x8 wall?

...foam or 2 layers of 4" foam board not sure which kind would be best ......or spray foam and fill the rest with rock wool....it would be nice to talk to someone ...

Posted by Michael Sweglar July 8, 2020, 10:43 a.m. Wall assemblies - new construction 3 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

What insulation should you use to cover the ground GEODESIC Dome?

...rigid foam insulation are both suitable for below slabs, so I think you’re best with one of those.

Posted by Vincent Warwick Oct. 1, 2020, 2:09 p.m. Insulation and soundproofing 1 Responses

Should I densepack wall cavities prior to exterior insulation?

...rigid foam insulation panels from Legalett that have rails on the interior of the foam so you can attach them with short screws, then attach the strapping to th...

Posted by Gordon McNair April 13, 2021, 9:21 a.m. Wall assemblies - renovation 3 Responses

How do you best use polyiso insulation in a basement?

...rigid board insulation is a great product, but it does have its limitations. It is more expensive than EPS rigid insulation, but it does have a higher R value. ...

Posted by Iain Matheson Jan. 24, 2020, 7:45 p.m. Basements 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

How do you insulate a cathedral ceiling?

...foam insulation. My walls are double 2x4 stud walls 12 inches deep and will have 2-3 inches of closed cell spray foam insulation to create a air and vapour barr...

Posted by Raoul Lions Oct. 19, 2019, 8:07 a.m. Roof assemblies - new construction 1 Responses

How to reduce the rain noise from a metal roof?

...foam and EXP or EPS foam will not do much to dampen sound but things like cellulose, rock wool or even fibre glass will held dampen the transmission of sound. H...

Posted by Igal H Nov. 24, 2020, 4:57 p.m. Insulation and soundproofing 1 Responses

What is the best insulation Under 2" Cement flat Roof in NYC?

...rigid board insulation for a flat roof, and there are several to choose from. Probably one of the more common types of insulation used for flat roofs is rigid p...

Posted by Rafael Mor March 29, 2019, 5:19 a.m. Roof assemblies - new construction 1 Responses

Can I purchase XPS made with HFOs?

...rigid insulation board you purchase will still have an impact several hundred times worse than EPS. And the moment that the switch is made, manfucturers will co...

Posted by Kate Noblio Dec. 14, 2019, 12:35 p.m. Insulation and soundproofing 3 Responses