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"FPSF"

FPSF / Discussions

  • 1 - 18 of 19 Posts

What is the proper way to build a Slab on Grade Foundation?

Building in WY area Zone 4b. I would like to build a Slab on Grade foundation. Reinforced concrete perimeter footings approximately 12" x 40" deep, and a 4" thi...

Posted by John Schureman March 25, 2025 Slab on Grade 3 responses

Crawl space versus slab, which is better?

I am in the early stages of planning a new home build. Am I correct in assuming that slab on grade constuction with passive floor heating would rule out the use...

Posted by Doug Bennett Jan. 5, 2025 Foundation and basement improvements 1 response

How do you insulate a basement slab to keep the benefits of thermal mass in a passive solar home?

Will I get the benefit of thermal mass with a foundation where the inside of the foundation stem walls are insulated and the rest of the horizontal part of the ...

Posted by Trudy Lynn Oct. 25, 2024 Passive solar home design 1 response

How much perimeter skirt insulation should go around a concrete slab?

Hey.  I have a question nobody seems to be able to answer: We're building an 1100 sqft ranch on a monolithic slab w/ 2" hard foam insulation under slab (+ crush...

Posted by Insinuendo Insinuendo Aug. 5, 2022 Slab on Grade 3 responses

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

Can you use 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 fro...

Posted by Lana Mcgeary Jan. 19, 2022 Slab on Grade 2 responses

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

I am looking to put in a 24X36 Post and Beam Garage/Workshop, assuming the post are mounted on a concrete pillar below the frost line, how would you integrate t...

Posted by Robert Nordman Jan. 19, 2022 Slab on Grade 1 response

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

I'm building a shop (~950 sq ft) and a cabin (~800 sq ft). They are on Manitoulin island and will be on exposed flat limestone that is randomly segmented. I wil...

Posted by Earl Williams Nov. 30, 2021 Slab on Grade 3 responses

What is the best way to install slab on grade insulation?

I am planning on building a small house 35 x30 that will sit on a slab on grade. I'm planning on installing some kind of wood floor so my question is. Would it ...

Posted by paul fowler Aug. 26, 2021 Slab on Grade 3 responses

Can you leave a Legalett slab in winter in Canada without the heat on?

Hi, Planning a home in rural Southern Ontario (Zone 6A). We want heated slab on grade but are concerned about preventing seasonal issues in winter. Legalett sys...

Posted by Gamog Cladhaire April 29, 2021 Slab on Grade 3 responses

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

...FPSF., 8 inches Rockwool rigid board under the exterior of the slab, Tpye III EPS foam under footings  and a skirt of R8 insulation extending out 4 feet.  ARe t...

Posted by Jay Law April 19, 2021 Slab on Grade 1 response

How well do Legalett slab on grade floor forms work?

We are planning a build for June 2020 in Prince Edward County, Ontario where there is 1 ft of topsoil, 2 ft of clay and then bedrock.  Structure planned is a bu...

Posted by Steve Sykes Aug. 18, 2019 Slab on Grade 3 responses

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

We're soon building a 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 ...

Posted by Grady 22 Aug. 17, 2019 Air and vapour barriers 3 responses

Can you elevate a slab on grade foundation?

I'm building a home up north in Parry Sound, Ontario next year. I'd like a slab foundation raised three feet above the ground level. I'd like to have a wrap aro...

Posted by Raoul Lions July 27, 2019 Slab on Grade 4 responses

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

Allergic to chemically treated wood, CODE requires PWF on concreted slab before house can be built Where are you building where code says such a thing? I don't ...

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

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

...FPSF in Southern Vermont (AFI 2300).  I want to fully insulate the radiant slab by including 4″ XPS under the footings but this seems to conflict with the FPSF ...

Posted by Jon Piana April 15, 2019 Slab on Grade 1 response

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

I am preparing to build a house in Grand Rapids MI and believe a slab on grade foundation is best suited. do you work here or can you supply a kit and assistanc...

Posted by Greg Hooks Nov. 20, 2019 Slab on Grade 1 response

How do you determine the thickness of concrete for slab on grade construction?

How would you determine the thickness for a new construction of a slab on grade that will have only liquid forces acting down on it? Not sure what you mean by l...

Posted by Ackeem Beason Feb. 16, 2021 Slab on Grade 1 response

Is it possible to do a mono pour if you have a covered porch?

Since the concrete slab is insulated, how do you manage to get the covered porch concrete poured at the same time? How does it work for the insulation? The sect...

Posted by Frank Gascon Aug. 10, 2020 Slab on Grade 1 response
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