Rigid foam / Discussions

Which is the best exterior insulation board to make a cottage 3 season?

...rigid insulation options, and I've come to the conclusion that as much as I'm trying to reduce plastic use, as EPS is mostly air (3% plastic?), affordable, does...

Posted by Sharon Challingsworth April 23, 2021, 7:16 a.m. Insulation and soundproofing 1 Responses

What is the best way to insulate a crawlspace to keep humidity down and stop odors?

...Rigid Foam Board What causes frost heave and how to prevent it And about venting crawlspaces, that can be a problem depending on where you live. The found...

Posted by Dave Bell Oct. 24, 2019, 3:57 p.m. Crawl spaces 3 Responses

How do I insulate my half below grade basement?

...rigid insulation against the wall to keep the moisture out. You have probably seen a few of the following pages but I’ll add them in case, and for anyone else...

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

Can you add external insulation to a brick home?

...rigid insulation , read more here – The difference between Polyiso, EPS & XPS Foam Insulation & Styrofoam Rockwool isn’t harmed by moisture and it lets mois...

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

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

...foam the joist area while using XPS ridgid boards for the wall and floor. ( Top of slab) Whats the best approach. Thank you We advise against spray foamin...

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

What is the best way to install slab on grade insulation?

...rigid insulation between 2x3 every 12 inches and cut down on the amount of insulation under the slab? Also, how do feel about using this 1 1/2 inch space to run...

Posted by paul fowler Aug. 26, 2021, 8:29 p.m. Slab on Grade 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

Is insulating an existing home from the outside a good solution?

...rigid foam panels will, which can trap moisture inside walls and lead to rot. Water vapor moves through mineral wool easily, and it isn’t harmed by moisture if ...

Posted by Cate Prichard June 26, 2021, 3:27 p.m. Wall assemblies - renovation 1 Responses

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

...foam rigid insulation panels, read more here . On top of that you could apply a cement board that can be parged or left as is. Let me know if any of those optio...

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

How should I insulate basement Walls in climate zone 5?

...foam on them so any warmer air from finished basement would permiate through mineral wool to the wall but air space would or should allow for dry out no? Thou...

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

How do you install radiant floor heating in an old building?

...rigid foam out side, insulated the wall cavities this cut our heating costs by 80%. About 2 years later we redid all of the ceilings in the house while doing th...

Posted by Rob Doda March 19, 2020, 3:21 p.m. Delivery: radiant, forced-air and decentralized 2 Responses

Which insulation do I use for interior walls of a framed in bunker?

...rigid foam etc. Here is our page on Choosing the right insulation , that will help you understand where each insulation works best no matter what the structure ...

Posted by Dale Klubertanz March 23, 2021, 10:38 a.m. Insulation and soundproofing 1 Responses

Are mice droppings and urine toxic?

...rigid foam boards or Rockwool would be a better alternative. Both are more suitable for potentially humid environments, and Rockwool in particular is made with ...

Posted by JT Nov. 14, 2017, 4:49 p.m. Pest control 1 Responses

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

...foam strip! So - as we want to use the space in the basement, what are the suggested steps to reduce the humidity? What should we put on the uninsulated floor...

Posted by Robert J. Pierson Oct. 17, 2019, 10:45 p.m. Basements improvements 2 Responses

What is the best way to insulate the exterior walls of an older home?

...rigid insulation (see here) is very important. It is best to install a vapour open exterior insulation so you don’t trap moisture inside the walls, which is why...

Posted by Geoff Kavanagh June 30, 2020, 4:01 p.m. Wall assemblies - renovation 1 Responses

What is the best way to insulate a home from the outside?

...foam could end up doing. [Another important side note – the rigid boards with foil on both sides are likely polyisocyanurate insulation, that is not the best ...

Posted by Sylvie Gagnon Dec. 12, 2017, 11:58 a.m. Wall assemblies - renovation 1 Responses

Why insulate the walls rather than the floor joists in a crawlspace?

...rigid foam sheets down on top of the poly that's great. Great if you can still walk on it carefully and not crack it due to uneven ground. As long as the spac...

Posted by Ron Monk June 2, 2021, 9:31 p.m. Crawl spaces 3 Responses

Will spray foam on basement walls prevent condensation?

...rigid foam insulation behind the stud wall? If not, is there anything there like a tar paper or house wrap? Let me know what’s back there and if the wall assemb...

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