Raft slab / Discussions

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

...Raft Slabs – how to build a slab on grade or basement on problem soils A raft slab is engineered to spread the weight of the building evenly over the entire s...

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

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

...slab on grade prefab kit? If so, see this page on Legalett Geoslab foundation kits and air heated floors and you can contact them through there. If that's not w...

Posted by Walter Hale Oct. 1, 2020, 7:20 p.m. Slab on Grade 1 Responses

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

...slab, but the one lead I can give you would be Legalett that provides raft slabs across all North America . They deliver all over North America, and their kits ...

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

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

...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 protect again...

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

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

...slab on grade and a basement However, is your lot sloped in a way that creating a flat surface for a slab is a problem? If so, the Legalett prefab slab on gra...

Posted by A. Delmas May 21, 2020, 8:59 p.m. Foundation choices 1 Responses

Can you elevate a slab on grade foundation?

...raft slab from Legalett . We chose that partly for performance, but also because the house is seated on expansive soils, so a frost wall and footing would have ...

Posted by Raoul Lions July 27, 2019, 2:47 p.m. Slab on Grade 3 Responses

What should I look for if I want to buy a slab on grade house?

I'm looking to buy a house build on a slab-on-grade . What should I be looking for in terms of insulation? Thanks, Terry Where is the house, and do you know ho...

Posted by terry northcott March 25, 2019, 11:02 a.m. Slab on Grade 1 Responses

Can I use a Legalett slab in Florida if I don't want floor heat?

...slab, or do you have something like this without the heated floors that would work better? A Legalett raft slab has an optional air heated radiant floor , but i...

Posted by Harry Dickinson March 25, 2021, 10:21 a.m. Slab on Grade 1 Responses

Can you add a screen/sun room and deck to a slab on grade?

...slab but a company that supplies prefab slab on grade kits (Legalett) can easily provide that, see more here – Slab-on-Grade Raft Foundation Insulation Detail...

Posted by Pierre Contant July 1, 2020, 10:55 a.m. Slab on Grade 2 Responses

How well does the Legalett air heated floor work when pouring concrete?

...Slab on Grade for LEED, Passive, ZNE Legalett monitors the process of installion for their raft slab kits, which includes a pre-pour inspection for warranty, ...

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

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

...slab form kit - (see details here)

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

For doing an off grid home what is the cost of the slab?

...raft slab form kit from Legalett ?

Posted by Jayperion July 31, 2020, 10:15 p.m. Planning and Design 1 Responses

Why do you say building on a slab is more ecological than starting with a basement?

...slab-on-grade construction over a basement are undeniable, you can read all the pros and cons here - Slab on Grade or Foundation and Basement; Which is Best? ...

Posted by Geri P Dec. 11, 2017, 11:45 a.m. Foundations and Basements 1 Responses

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

...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 passive solar heat fro...

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

Should I build a basement or slab on grade?

...slab on grade mainly because of familiarity . Most don’t know how to build a slab on grade so they tend to steer you way from them simply for lack of knowledge ...

Posted by robert baker March 27, 2020, 6:54 p.m. New foundations and slab-on-grade 9 Responses

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

...slab-on-grade floor The air heated floor may be an option worth exploring, it is provided by a company that designs and manufactures engineered raft slabs (fr...

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

What is the best way to build a slab on grade on bedrock?

...slab on grade form kit. You have other option to raft construction.check iso-slab is structural insulated slab kit,cheaper and easiest option to raft kit.

Posted by peter owen Oct. 31, 2019, 3:33 p.m. Slab on Grade 1 Responses

Where do I start to build a small, affordable, low-maintenance house?

...Slab on Grade or Foundation and Basement; Which is Best? Slab-on-Grade Raft Foundation Insulation Detail, Prefab ICF Form Kits Slab-on-Grade Foundation Deta...

Posted by Ocean-Lynn Georgelin Oct. 22, 2019, 11:40 p.m. Concept and design 2 Responses