Frost / Discussions

Why is there fost on underside of roof deck in overhang?

...frost build up. However another contractor has told me that you need moisture for frost to occur and that the lights themselves would not cause this. I'm not so...

Posted by George Paul March 23, 2020, 12:10 p.m. Roof assemblies - renovation 2 Responses

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 3 Responses

Should I build a basement or slab on grade?

...frost barrier at the perimeter. We don't understand how this cold be true. It would also mean that it would not make sense to use infloor heating ane geothermal...

Posted by robert baker March 27, 2020, 6:54 p.m. New foundations and slab-on-grade 1 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 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

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 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

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 choose between a basement or slab on grade?

Hi, my apologies if this question has already been answered or has any glaring misconceptions. I've only recently begun my journey into building my first home ...

Posted by Lisa Delmas May 21, 2020, 8:59 p.m. Foundation choices 0 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

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

How do you create a slab on grade on a slope?

...frost-heave, and install drains in the patio linked to the perimeter drain to keep everything dry during those wet spring-times in Pennsylvania. Whether an en...

Posted by Adrienne Rayna June 30, 2020, 3:58 p.m. New foundations and 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