Spray foam / Discussions

Can you spray foam a house from the outside?

...spray foam from the outside. It seems we could also drill holes and blow spray foam in without removing the sheathing. Now that the blowing agents are more eco-...

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

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

...spray foam rather than a failure. The wood studs will transfer far more heat than the Spray Polyurethane Foam (SPUF) , so what you are seeing could actually be ...

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

Can I spray foam insulate from the outside?

...spray 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 wo...

Posted by Kurt Klischuk June 6, 2019, 8:56 a.m. Wall assemblies - renovation 1 Responses

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

...spray 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! ...

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

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

...spray cork renders vs. fully insulating the outside of our home with rockwool or foam board and new siding. We need a cost effective solution to create a therma...

Posted by Rebekah Barnes Jan. 17, 2020, 10:07 p.m. Wall assemblies - renovation 0 Responses

How do you build a cathedral ceiling?

...spray 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 vapou...

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

Can I put a breathable peel and stick weather (air) barrier on the inside walls and ceiling?

...spray foam inside the assembly cavity of my walls and unvented flat roof ceiling. It's impossible to air seal all the joints and sistered joists with caulk or s...

Posted by Anomika Singhn Oct. 1, 2018, 9:56 p.m. Air and vapour barriers 1 Responses

How do you fix high humidity levels in a basement?

...spray foam insulation; the foundation around my house on the outside surface has been waterproofed (4 cracks were found inside the basement walls) and the gradi...

Posted by JR Tadinac Aug. 21, 2019, 11:26 a.m. Healthy indoor air quality 3 Responses

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

...Spray foam on rim joists of old homes is one of the few places we regularly recommend it, as any material with spray foam on it is not recyclable or re-useable ...

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

What do I in my basement where new insulation meets old?

...spray foam them (like you it's not our first choice but it works) or you can cut pieces of foam boards and place them between the joists and seal them with acou...

Posted by Steve J July 20, 2019, 10:01 p.m. Basements improvements 2 Responses

How do you fix a moisture problem in a finished basement?

...spray 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 polyethy...

Posted by Margo MACFARLANE Oct. 28, 2019, 10:24 a.m. Foundation and basement improvements 1 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

I want to insulate the outside of my house, which type of insulation do you think is best?

...foam for cellulose, that would be cheaper than the spray foam, though there are additional durability concerns so you'd need to ensure there is no water infiltr...

Posted by Joe F Nov. 15, 2017, 10:34 a.m. Wall assemblies - renovation 7 Responses

Can you install foam boards directly against basement walls?

...foam boards against the wall THEN the stud wall, you don't want to have organic material exposed to moisture, particularly having a source of moisture on one si...

Posted by Ted Gorab Oct. 3, 2019, 6:09 p.m. Basements improvements 4 Responses

What is the best way to renovate a basement after a flood?

...spray foam behind it and even under it. As for sealing the floor, I would recommend a silicate densifier. It would make for a very durable and completely non-...

Posted by Wren Toombs June 18, 2018, 10:52 a.m. Foundation and basement improvements 1 Responses

Do you have on a category on insulating vans?

...spray foam. That would provide a high per-inch R value as well as reducing air leakage. There are two companies we know of that have switched to more environm...

Posted by chantal fortier April 14, 2019, 2:08 p.m. Tiny house 1 Responses

For home renovation, is it better to install insulation on the inside or outside?

...spray foam, you could fill exterior cavities with batt insulation, dense packed cellulose, you could also add rigid foam panels, Rockwool panels etc, there are ...

Posted by Neil Richardson Jan. 29, 2019, 4:09 p.m. Wall assemblies - renovation 1 Responses

How do you seal up an old fireplace chimney?

...spray foam, it is easily disassembled if needed so you may be able to use the existing chimney for a wood stove or a gas or wood fireplace insert in the future ...

Posted by Gord Nov. 2, 2017, 10:06 a.m. Wood stove and biomass heat 3 Responses