Frost / Discussions

Why is there frost on the underside of my roof 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

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

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 3 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 1 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 9 Responses

Could we use a raft slab with ICF walls on a sloped site?

...frost would require a number of different depths to stay 4+ feet below grade. I would use ICFs in lieu of the tires that Mike Renolds advocates, as I am 73 yrs ...

Posted by Paul Fischer Sept. 15, 2020, 2:21 p.m. Slab on Grade 1 Responses

Can you install electric wire in floor heat cables and cork flooring?

...frost wall with 4 inches of rigid insulation giving me R20 laid over the vapour barrier, then Ouellet OWC-M series electrical heating cable laid under 4inches o...

Posted by C Whitby Aug. 7, 2020, 6:43 p.m. Flooring and stairs 1 Responses

Can you install a slab on grade foundation in the Fall and leave it over winter?

...frost heaves. We are also planning to polish and finish the concrete flooring as our finished floor so keeping it in good condition o finish is important. Tha...

Posted by Matthew Gioia Sept. 21, 2020, 9:15 p.m. Slab on Grade 1 Responses

What is a thermal break solution at a door threshold?

...frost wall. Our exterior above grade walls will also be ICF with the addition of 3.5" of EPS panels on the exterior. We will have a concrete slab floor. What ...

Posted by Shaun B Sept. 13, 2020, 6:31 a.m. Slab on Grade 2 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

What are the foundation options for a prefab house?

...Frost wall and crawl space: Pros are conditioned space for utilities and HVAC, elevated foundation to manage slope, prevents critters in crawl space and some st...

Posted by Richard Bowie Nov. 20, 2020, 3:40 p.m. Foundations and Basements 2 Responses

How much for a 1200 square foot house will it cost me to finish the slab

I live in Newfoundland and I'm very interested in your system just wondering the cost for a 1200 square-foot home roughly Hi Walter, Do you mean the slab on gr...

Posted by Walter Hale Oct. 1, 2020, 7:20 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