Insulation levels / Discussions

Do I need to insulate under the footings of a frost protected shallow foundation?

...insulation (where and when it is needed). This is exactly how we would build a slab, so we rely on insulation to protect the building from frost damage rather t...

Posted by Jon Piana April 15, 2019, 8:45 a.m. Slab on Grade 1 Responses

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

...insulation with studs on 16oc all the way until Joist levels. ( Not insulated) can touch concrete. And no Vapor barrier. The basement is also dry and not humid....

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

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

We're soon building a slab on grade foundation for our new cabin in Montana and I've decided to sit it on a 4" EPS foam insulation so the slab will retain some...

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

How do you fix high humidity levels in a basement?

...insulation in the basement has been removed and replaced with spray foam insulation; the foundation around my house on the outside surface has been waterproofed...

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

What should I look for if I want to buy a slab on grade house?

...insulation levels, and if it has been damaged in anyway. Slabs also tend to be closer to the ground that a standard foundation, so I would inspect the bottom ...

Posted by terry northcott March 25, 2019, 11:02 a.m. Slab on Grade 1 Responses

How do you build a cathedral ceiling?

...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 barrier f...

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

What type of wood can be installed on a radiant floor?

We are starting construction of our new house shortly, with the basement it will be 3 stories, we will have hot water radiant floor heating on all three levels...

Posted by Colleen Blak Dec. 11, 2017, 1:59 p.m. Flooring and stairs 1 Responses

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

...insulation, but there you go. You can read more about it here - The difference between Polyiso, EPS & XPS Foam Insulation & Styrofoam It's still a great ins...

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

Is it normal that condensation forms on the windows of my new home?

I have a new house (self-built) on a concrete slab insulated with R22 rockwool and R3 panel insulation. The windows are double glazed wood and aluminum. I do n...

Posted by Kevin Newman April 19, 2017, 10:30 a.m. Ventilation 1 Responses

What is the best way to make a row house in Montreal Quebec more energy efficient?

...insulation and radiant tubing. Sounds like you already have sufficient height in the basement, but I doubt there is any insulation if it was a 70s-80s pour so I...

Posted by Elizabeth Brown Feb. 26, 2019, 9:09 p.m. Wall assemblies - renovation 3 Responses

Can you provide Crawlspace Insulation Design Assistance?

...levels down, that’s why I’d be thinking of sealing the walls as well. I have a couple of questions for you, what climate zone do you live in by the way? Even ju...

Posted by Randy Christensen Dec. 10, 2019, 12:17 p.m. Crawl spaces 1 Responses

Is polyiso board or styrofoam best for insulating when finishing a basement in CO?

We have a concrete basement in decent condition that's about 20 years old in Boulder CO and having had mitigation installed for high radon levels we now want t...

Posted by Evan B. Nov. 21, 2019, 8 p.m. Basements improvements 1 Responses

Should a Vapor Barrier be installed over Exterior Grade Plywood?

...levels. The reality is that all homes in Canada need vapor protection on the warm side of insulation, and almost all new homes now have A/C, but it’s still not ...

Posted by Michael Klauck March 6, 2020, 1:24 p.m. Air and vapour barriers 1 Responses

Was the Kenogami House Worth the Cost?

...insulation levels. That said - in general, the answer is yes, you are better to increase your performance levels beyond those required by code. We don't have ...

Posted by dean c March 22, 2019, 3:58 p.m. Planning and Design 1 Responses

Are Insulated Concrete Forms and Gigacrete panels good?

...levels, builders often look for a higher R value per dollar wall assembly. If you are planning ICF and Passive house, I would suggest having a look at Thermal...

Posted by Dallin Sumpter Feb. 21, 2019, 2:46 a.m. Wall assemblies - new construction 5 Responses

What is the optimal setup for mechanical systems for slab on grade?

...insulation was too abstract a notion, for something you don't actually see. Maybe the new role of a contractor is equal parts educator and builder.... or I'll j...

Posted by Dave Nuttall July 6, 2019, 9:42 a.m. Mechanical systems 1 Responses

How do you insulate a crawlspace?

...insulation is if you didn’t include a vapor barrier on the warm side of the insulation, meaning between the joists before the insulation. And due to the stack e...

Posted by Drew Weistend Nov. 14, 2017, 9:22 a.m. Crawl spaces 1 Responses

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

...insulation types? (Old Poly vapour sheet and fibreglass insulation vs new Rockwool and EPS) How do address the areas where the EPS is adjacent to the old insu...

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