"Foam"

Foam / Discussions

Do I need a standard 6 mil poly vapor barrier with dense cellulose exterior wall?

...foam board and poly barrier. The foil faced foam board is not completly tight against the underlying shingles and I assume does allow for some air movement un...

Posted by jeff Chormann May 1, 2020 Air and vapour barriers 2 responses

Protection from Insects for Legalett Geo-passive super insulated slab on grade?

I've already contacted Ecohome about a quote for a full turnkey eco-habitate s1600 for where I am here in Nova Scotia. But one concern I have about the Legalett...

Posted by James Burns April 30, 2020 Slab on Grade

Which is the best basement insulation?

...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 and up cover...

Posted by Alex Kesheshian April 23, 2020 Basements 1 response

Can Rockwool be installed over Type II EPS?

...Foam Insulation & Styrofoam Sometimes adding XPS or EPS rigid foam to the outside of a house can cause problems since it can trap moisture. That said, it is...

Posted by Brian Bonnell March 30, 2020 Wall assemblies - renovation 1 response

What is the most efficient passive home design?

...foam forms a good idea? To find the most efficient Passive House wall, if your intention is to reduce your carbon footprint, starts with choosing materials with...

Posted by Peter Riley Jan. 29, 2020 Passive House 1 response

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

Hi I'm wanting to add insulation to the exterior of my home as I am planning to replace siding was considering rockwool comfortboard but this Halo product was s...

Posted by George Shannon Jan. 21, 2020 Insulation and soundproofing 12 responses

What is the best way to insulate the basement of an old house?

...foam acts pretty much as a type II residential vapor barrier, but I would put the vapor barrier right against the foam and do the poly on top. And as for finish...

Posted by Bryan Squirrell Jan. 14, 2020 Basements improvements 1 response

What is the best foam board insulation under drywall?

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

Posted by Wesley Pracht Jan. 11, 2020 Wall assemblies - renovation 3 responses

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

...foams available some of which mention climate change and environmental concerns - but we're wary of greenwashing, so I would value your opinion as to spray foam...

Posted by Amélie Pearson Jan. 9, 2020 Insulation and soundproofing 1 response

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 concrete ...

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

Can I purchase XPS made with HFOs?

We start a new residential build Spring 2020. Can I purchase XPS panels with HFOs anywhere? If not, any idea when they will be available? If they aren't availab...

Posted by Kate Noblio Dec. 14, 2019 Insulation and soundproofing 3 responses

What's the difference between EPS and GPS insulation?

...foam but you can use it anywhere you would use EPS rigid foam insulation. EPS is typically rated at abou R4 per inch where GPS is typically rated as having R5 i...

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

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

...foam board 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

How should I install XPS insulation in a basement?

All, I have what I think is an unusual problem and I’d like suggestions for the best way to address it. I have a below-grade “cinder block” basement wall that ...

Posted by Ken Hunold Dec. 27, 2020 Basements improvements

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

...foam board 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 on foam ...

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

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

...foam insulation, though in 2015 we did build a demonstration house on a slab on grade using mineral insulation below the floor, would that work for you? Hemp in...

Posted by Vincent Warwick Oct. 1, 2020 Insulation and soundproofing 1 response

What is the best way to insulate a Multi-material wall?

...foam insulation on the exterior of a concrete foundation is fine. In most cases, foundations are built in such a way the concrete will always stay wet due to ei...

Posted by Steve J Sept. 29, 2020 Wall assemblies - renovation 7 responses

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

I have an older home in Toronto with plaster lathe walls with no insulation behind them. I want to insulate the walls but not remove the plaster as it's still ...

Posted by Geoff Kavanagh June 30, 2020 Wall assemblies - renovation 2 responses