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 to you build a raft slab foundation?

...raft slab is different than standard slab on grade construction, and it pretty much by definition needs to be designed by an engineer. A true raft slab is built...

Posted by Kate Bottriell Aug. 19, 2021, 5:25 a.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

Can you build Slab on grade as an extension on an existing house with a crawlspace?

...slab on grade for a 20 by 14 room extension on a main house with Poured concrete dirt floor crawl space. Yes, you can pour a slab on grade as a frost protected ...

Posted by Lana Mcgeary Jan. 19, 2022, 11:09 a.m. Slab on Grade 2 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

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

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

What is the best method of building a slab on grade?

...slabs with different methods, our preferred method on how to build a slab on grade would be with an engineered prefab raft slab kit . The reason we like that sy...

Posted by Jay Law April 19, 2021, 3:09 p.m. Slab on Grade 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

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

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 4 Responses

How would you do a Slab on Grade with a post and bean garage in New Hampshire?

...slab on grade raft slab which only requires digging 6 inches down to remove the organic layer as it is all built on a flat surface with no thickened edge footin...

Posted by Robert Nordman Jan. 19, 2022, 10:49 a.m. Slab on Grade 1 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

Does insulating a slab on grade make the building less stable?

...slab. What do you think? A Slab on Grade needs to be built correctly, but no, Insulation under a slab floor will not make it less stable. To me that sounds like...

Posted by Nicolas Jalbert May 28, 2018, 4:56 p.m. Slab on Grade 1 Responses

Can you install tubing under a slab on grade foundation to extract heat in winter?

Can tubing for a ground source heat pump be put under a slab on grade prefab form foundation kit to extract winter heat? We generally recommend people check wi...

Posted by Jennifer Cole Aug. 28, 2019, 11:34 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

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