Frost / Discussions

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

I have a customer with frost problems whose home shows every stud from the outside on a winter day. Would you say their spray foam insulation has failed? It's ...

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

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

...frost heave, and that the more you insulate, the less heat will escape, increasing the risk of damage. And the way to mitigate that risk is to install a perimet...

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

What is the best way to heat an off grid home?

...frost wall I will run with the assumption that your house is not yet built otherwise you would already have a heating solution, is that correct? If not let me k...

Posted by Michelle Nason Aug. 8, 2018, 1:48 p.m. Off-grid and Net-Zero Housing 1 Responses

How do I stop a leak from my attic?

I'm getting water dripping down the inside walls of two opposite exterior walls. I checked the attic and found 1) frost of the underside of the roofing plywood...

Posted by Markus Duess Feb. 11, 2019, 12:42 a.m. Roof assemblies - renovation 1 Responses

Does insulating a slab on grade make the building less stable?

I want to build a 24 x 26 garage. I would like to do a slab on grade for the obvious savings of not pouring the 4' frost wall and wante to do infloor heating. ...

Posted by Nicolas Jalbert May 28, 2018, 4:56 p.m. Slab on Grade 1 Responses

What's the difference between a slab on grade and a monolithic foundation?

I've been looking for a manufacturer of frost protected shallow foundation foam forms to get a quote for an addition in Michigan and keep reading about slab on...

Posted by Ronaldo Johnitas Dec. 10, 2019, 6:12 a.m. Slab on Grade 4 Responses

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

...frost and freezing temperatures on the main floor in the corners of the house. We plan to replace the single pane wood frame windows when updating the outside o...

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

Can you elevate a slab on grade foundation?

...frost level (4ft. Up north) a better route? Or do you suggest something altogether different? Keeping in mind I'm trying to build as Passive House as possible...

Posted by Raoul Lions July 27, 2019, 2:47 p.m. Slab on Grade 1 Responses

How much insulation should I install underneath my concrete slab in my basement?

I live in a cold climate - Winnipeg Manitoba, and intend to install radiant heat in the concrete slab. As my basement is below the frost line, I’m not sure if ...

Posted by Scott Antonation Sept. 27, 2019, 1:06 a.m. Slab on Grade 3 Responses

How do you build a mold-free basement in a new construction house?

...frost heave. The way they have done the outside seems fine, with a drainage membrane and backfill, so any issues would be on the interior. Before we move on t...

Posted by Charmaine Herzig Feb. 10, 2020, 7:32 p.m. Basements improvements 3 Responses

Slab on Grade for House in Grand Rapids MI - Can I get Prefab form kits & Assistance easily?

I am preparing to build a house in Grand Rapids MI and believe a slab on grade foundation is best suited. do you work here or can you supply a kit and assistan...

Posted by Greg Hooks Nov. 20, 2019, 3:35 p.m. Slab on Grade 1 Responses

Can you put hemp insulation in an attic?

I need to pull the cellulose from the attic, I have a radiant barrier on the attic ceiling and floor. I am removing the cellulose, but what non toxic insulatio...

Posted by Pamella Weatherly-Phillips Aug. 16, 2019, 11:49 a.m. Roof assemblies - renovation 1 Responses

What infloor radiant heating would you use in a corewood home design?

...frost-protected shallow foundation slab on grade) . They are available across North America. Where are you located?

Posted by John Yoho Feb. 6, 2020, 10:59 p.m. Wall assemblies - new construction 1 Responses

Would you recommend Legalett over water radiant floor heat for a backyard studio in Toronto?

...frost wall and you aren’t digging down very deep, it often eliminates the need to under-pin any nearby structures for safety. As for how much rebar needs to b...

Posted by Christine Pountney May 2, 2019, 1:22 p.m. Delivery: radiant, forced-air and decentralized 1 Responses

What are the factors I should consider for choosing between a slab on grade and basement?

...frost wall system vs. a slab type system like Legalett's? Thanks. A footing and frost wall requires a lot more excavation and a lot more concrete, and it's done...

Posted by Shaun B April 2, 2019, 6:35 a.m. Slab on Grade 3 Responses

Can a solar thermal air system be coupled to an HRV for heating incoming fresh air?

...frost-depth, or below the slab or below the skirt insulation), so that incoming air takes advantage of ambient ground temperature. There are some concerns wit...

Posted by Brian Billings March 21, 2019, 2:53 p.m. Solar thermal collectors 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

Can hydronic radiant heating be a complete heating solution for a home?

...frost pocket" we are more a 5B or 5A. Thanks once again! You're welcome Jeremy! We did a combination of radiant floors, air source heat pump and heat pump w...

Posted by Jeremy Peters Dec. 16, 2019, 1:13 a.m. Delivery: radiant, forced-air and decentralized 3 Responses