Ask A Question

Ask a question or share information about a project you are working on.

New foundations and slab-on-grade

The first step to Green home design and construction is deciding what sort of base you will rest it on. The Guide pages below help choose between slab-on-grade construction, traditional strip foundations with crawlspace and basement foundations - then show step by step how to build them better. 

What's the difference between a slab on grade and a monolithic foundation?

Posted by K Stevens Dec. 10, 2019, 6:12 a.m. Slab on Grade 0 Responses

Where can I purchase non-toxic interior wall panels near Laval, Quebec?

Posted by Louise Goulet Nov. 30, 2019, 1:14 p.m. Basements improvements 1 Responses

How do you prevent mold in a finished basement?

Posted by Brian Cole Nov. 22, 2019, 10:22 a.m. Basements improvements 1 Responses

How do you apply vapor barrier and insulation to a CMU house?

Posted by Scott Brekke Nov. 22, 2019, 9:37 a.m. Basements improvements 1 Responses

Can you replace an old slab foundation with an air heated slab?

Posted by Mike Molloy Nov. 7, 2019, 8:44 p.m. Slab on Grade 1 Responses

What Should You Look For When Buying a Slab on Grade Home?

Posted by Mike Molloy Nov. 6, 2019, 7:29 p.m. Slab on Grade 1 Responses

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

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

What is the best way to reduce humidity in a basement?

Posted by Frank Cooper Oct. 17, 2019, 10:45 p.m. Basements improvements 2 Responses

How do I insulate my half below grade basement?

Posted by tom mckeand Oct. 14, 2019, 11:01 p.m. Basements improvements 1 Responses

Can you install foam boards directly against basement walls?

Posted by Ted Gorab Oct. 3, 2019, 6:09 p.m. Basements improvements 4 Responses

How much insulation should I install underneath my concrete slab in my basement?

Posted by Scott Antonation Sept. 27, 2019, 1:06 a.m. Slab on Grade 3 Responses

What type of green flooring is best for a basement floor?

Posted by Jeff Krohn Sept. 15, 2019, 5:52 p.m. Basements improvements 1 Responses

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

Posted by Jennifer Cole Aug. 28, 2019, 11:34 a.m. Slab on Grade 1 Responses

How well do Legalett slab on grades work?

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

About

New foundations and slab-on-grade

Traditionally in North America, home construction starts with a crawlspace or concrete basement foundation. Depending on the situation there are other options that can be more durable and affordable that will better protect your home air quality and energy efficiency - especially important for LEED, Passive House, ZNE or in the future Net Positive Energy homes.

The first factors to consider when designing the foundation of a home are lot size and soil conditions. When space is limited (with total footprint or height restrictions) a basement foundation may be the best option, but if space allows there is a strong case for avoiding basements altogether with a slab-on-grade foundation design.