Heave / Discussions

Have you excavated under one of your slabs middle of winter?

...heave - All About Frost Heave Prevention in Cold Climates Our last slab was built on a Legalett frost protected slab on grade , and Legalett has installed t...

Posted by Mike Kolder Jan. 31, 2021, 2:31 p.m. Slab on Grade 1 Responses

What is the ground temperature 4 feet down in Sudbury, Ontario?

Hi, how can I know the lowest ground temp in the Sudbury latitude up as far as temiskaming latitude? Ideally at various depths. Thanks for being there, Paul

Posted by Paul Bullock Oct. 8, 2020, 4:53 p.m. 0 Responses

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

...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 perimeter ski...

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

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

...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. Thanks fo...

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

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

...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 to dryw...

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

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

...heave. So what you may be able to do, is dig out the portion of the hill that would be the back wall, create a level flat surface that big enough for the foot...

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

Can you help me decide between a foundation, slab on grade and crawlspace?

...heave, shifting or cracking, and to make sure that the soil conditions are appropriate for a slab Make sure to install a sufficient amount of insulation to av...

Posted by David Davenport Nov. 26, 2018, 12:57 a.m. New foundations and slab-on-grade 1 Responses

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

...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 engineer...

Posted by Adrienne Rayna June 30, 2020, 3:58 p.m. New foundations and slab-on-grade 3 Responses

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

...heave, but typically a designer or engineer that doesn’t specialize in soils will insist on one regardless. It can be an unnecessary cost, but it does no harm a...

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

What are the foundation options for a prefab house?

...heave would likely be about perfect. Our last LEED Platinum Demo house is on a slab on grade with a base of 6 inches of EPS foam insulation, which is also a sen...

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