Legalett / Discussions

How well do Legalett slab on grades work?

...Legalett system? We also believe we have a good local excavator for the septic and foundation work. 7) If so, would non-Legalett trained people need any speci...

Posted by Steve Sykes Aug. 18, 2019, 3:21 p.m. Slab on Grade 1 Responses

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

...Legalett air-heated floor, below is a link to an installation video as well as a few other resources on slabs. Legalett Solar Air Heated Slab on Grade insta...

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

Protection from Insects for Legalett Geo-passive super insulated slab on grade?

...Legalett slab is the possibility of insects, especially termites and/or carpenter ants infesting the EPS. Is that a danger? Among the many possible ways to prot...

Posted by James Burns April 30, 2020, 11:11 a.m. 0 Responses

Can you do an update on Ecohome’s new demo house?

Legalett's air heated radiant floor system uses a sealed, closed-loop system, in part, to control moisture in the tubing and therefore mold growth. In Ecohome’...

Posted by dean c Oct. 16, 2019, 2:04 a.m. Concept and design 1 Responses

How do you choose between a basement or slab on grade?

...Legalett solar air floor as your basement floor? Any advice would be greatly appreciated, thanks so much!

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

What windows should you use when trying to build a Passive House?

...Legalett, double frame wall system, 12 inches deep filled with dense pack cellulose insulation and a parallel sloping truss roof 15 inches deep again filled wit...

Posted by Raoul Lions Jan. 25, 2019, 2:18 p.m. Windows and doors 1 Responses

4" air pipe quality for air heated floor?

...Legalett raft slab air-heated floor you need to vibrate the concrete with a pencil vibrator. The company provides all the instruction for concrete strength and ...

Posted by Israel Sword March 28, 2020, 6:26 a.m. Slab on Grade 1 Responses

Are there any updates on the progress of the second demonstration house?

...Legalett air-heated floors across Canada and the U.S. since the mid-70s, and even longer in Sweden where the company originated, so there is nothing new there; ...

Posted by dean c April 30, 2019, 7:58 p.m. Solar thermal collectors 2 Responses

Where would I go for guidance on structural design of footings that sit on top of high-density insulation?

...Legalett to supply a pre-engineered insulated slab form kit - (see details here)

Posted by Douglas Bennion July 31, 2019, 4:34 p.m. Foundations and Basements 1 Responses

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

...Legalett, they distribute in Canada and the US. If you provide them with final building plans and structural details they will in turn provide you with stamped ...

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

Adding Screen/sun room And deck to a slab on grade

...Legalett) can easily provide that, see more here – Slab-on-Grade Raft Foundation Insulation Detail, Prefab ICF Form Kits There is reason to be concerned tha...

Posted by Pierre Contant July 1, 2020, 10:55 a.m. Slab on Grade 1 Responses

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

...Legalett that provides slab on grade kits that mean you can stop scratching a hole in your head figuring insulation levels, they do it all for you. We just buil...

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

Do you have an Engineer directory for slab on grade designers?

...Legalett that provides raft slabs across all North Americ a. They deliver all over North America, and their kits come with stamped engineering drawings along wi...

Posted by Paul Giusto Dec. 30, 2019, 8:12 a.m. Slab on Grade 1 Responses

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

...Legalett and will also investigate others. Do you have any preference over a frost wall system vs. a slab type system like Legalett's? Thanks. A footing and fro...

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

Are Insulated Concrete Forms and Gigacrete panels good?

I want to build a house to passive house standards and keep it to a relatively small budget. I stumbled upon ICFs and Gigacrete while researching building mate...

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

Can you help me choose between a slab on grade and pressure treated wood foundation?

...Legalett) has over 2 million square feet installed in North America and they have never been refused a permit. Here are a few pages that may help you build a ...

Posted by Margot Simonot May 20, 2019, midnight Slab on Grade 1 Responses

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

...Legalett , and they don't install vapour barriers ever unless for radon gas prevention or to achieve Passive House certification . All that to say, 4 inches of ...

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

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

...Legalett has been doing that for decades. Its the solar panels that are an experimental concept here but they still aren't on unfortunately. We hope to have tha...

Posted by Michelle Nason Aug. 8, 2018, 1:48 p.m. Off-grid and Net-Zero Housing 3 Responses