Foam insulation / Discussions

What is the best foam board insulation under drywall?

...insulation. I would like to replace with R15 Rockwool and about 1" of foam board insulation attached to the stud and seams taped. Then I would set 1/2" drywall ...

Posted by Wesley Pracht Jan. 11, 2020, 8:10 p.m. Wall assemblies - renovation 1 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

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

...foam insulation so the slab will retain some passive solar heat from the south facing windows in winter, avoiding having to put too much heat in to keep stuff f...

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

How thick should EPS foam insulation on basement walls be?

...foam insulation, as they are all a bit different and not all great for the same purposes – Choosing rigid foam insulation panels, which is best ? Do you hav...

Posted by Derrick R March 17, 2021, 9:13 p.m. Insulation and soundproofing 3 Responses

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

...foam panels – Choosing rigid foam insulation panels, which is best? I assume at least some of the insulation will still be exposed above grade, correct? Did...

Posted by Andrew Cherubini March 21, 2021, 9:02 p.m. Insulation and soundproofing 3 Responses

Can you add exterior rigid foam insulation (e.g. EPS) with replacing windows?

...insulation and plywood exterior. Is there a method to do this that would not put the structure at risk from water penetration? How much benefit would we get fro...

Posted by Peter Milliken Nov. 9, 2020, 9:13 a.m. Wall assemblies - renovation 0 Responses

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

...foam insulation has failed? It's hard to ever weigh in on a problem with complete confidence without seeing a project or knowing the full wall assembly, but if ...

Posted by Gerald Crozier July 22, 2019, 10:24 p.m. Insulation and soundproofing 1 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

Can Rockwool be installed over Type II EPS?

...insulation – The difference between Polyiso, EPS & XPS Foam Insulation & Styrofoam Sometimes adding XPS or EPS rigid foam to the outside of a house can caus...

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

Is it a good or bad idea to spray foam directly on the interior of shiplap siding?

...foam the back of the wood. Exterior siding is meant as a weather shield, it protects the control layers of your wall (air barrier, vapor barrier, insulation, we...

Posted by MITCHELL KOCH Aug. 21, 2020, 3:49 p.m. Exterior cladding 1 Responses

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

...insulation was added on one of the walls (all others checked and fine) condensation is building up after I waited a month or so into winter and pulled the insul...

Posted by Chad Johnson Dec. 21, 2019, 7:59 p.m. Basements improvements 3 Responses

Heco topix screws - which type should be used for attaching insulation outside a house?

...foam external insulation, should Therm Insulation or Stainless screws be used? Is it necessary to have the double thread design of ThermInsulation screws when i...

Posted by Mike Taylor April 7, 2020, 4:45 p.m. Materials and resources 2 Responses

Can you use spray foam Insulation under a slab?

...foam polyurethane. If not, why? When building a slab on grade, EPS rigid foam insulation is the most common choice of insulation, for performance and cost . I w...

Posted by Linda Martin April 6, 2020, 11:54 a.m. Slab on Grade 1 Responses

Do you have an updated recommendation for attaching exterior mineral wool insulation?

...insulation to the exterior of a wall assembly. Probably the easiest and most affordable method would be ThermalWall rigid foam insulation panels ThermalWall i...

Posted by Fred D Aug. 31, 2020, 1:07 p.m. Wall assemblies - new construction 1 Responses

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

...foam insulation in general for basement conversions and which spray foam would be best for environmental reasons to help us make a decent choice. Thanks! Insula...

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

What is the best way to insulate my basement?

...Foam Board Insulation over the bare concrete and leave the framed walls insulated as the are? 2. Install Foam Boards over the concrete and replace the foam in...

Posted by Chris Rogers Oct. 27, 2019, 11:23 a.m. Foundation and basement improvements 1 Responses

How do you insulate exterior walls if a tiny house?

...insulation foam sheets on exterior can I use formular 1/2" or does the foam sheet need to be foil faced? And can i also use 1/2" formular between the studs on t...

Posted by John Boy Feb. 23, 2021, 10:21 a.m. Insulation and soundproofing 0 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