BASC Search | Building America Solution Center

Turned down concrete slab - 1 inch rigid insulation

Decision-making process for foundation design

Publication Date

Tue, 01/01/2013 - 12:00

Concrete slab over polyethylene sheeting as capillary break

Publication Date

Thu, 02/01/2018 - 12:00

Innovation in Frost Protected Shallow Foundations

Author(s)

Green Home Institute

Organization(s)

Green Home Institute

Publication Date

January, 2019

Video describing how a frost-protected shallow foundation (FPSF) is constructed and including use of a stay-in-place EPS (expanded polystyrene) footing form that provides insulation and simplifies the installation of frost-protected monolithic concrete slab foundations.

Innovation in Frost Protected Shallow Foundations

Author(s)

Green Home Institute

Organization(s)

Green Home Institute

Publication Date

January, 2019

Video describing how a frost-protected shallow foundation (FPSF) is constructed and including use of a stay-in-place EPS (expanded polystyrene) footing form that provides insulation and simplifies the installation of frost-protected monolithic concrete slab foundations.

Spray Foam Interior Insulation for Existing Foundation Walls

Guide describing how to insulate an existing foundation wall by adding spray foam insulation to the interior side of the wall.

BSC Information - Slab Edge Insulation for All Climates, Sheet 513

Author(s)

Building Science Corporation

Organization(s)

BSC

Publication Date

May, 2009

Information sheet about insulating slabs.

Turned down concrete slab - 3/4 inch rigid insulation

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Turned down concrete slab - 1 1/2 inch rigid insulation

DWG

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Right - Basement with exterior XPS or EPS insulation and insulation under the basement slab.

Publication Date

Tue, 01/01/2013 - 12:00

Benefits of foundation insulation and other design improvements

Publication Date

Tue, 01/01/2013 - 12:00

UAF Cooperative Extension Service: Radon Mitigation in Super-Insulated Slab

Publication Date

August, 2013

Author(s)

Benesch

Organization(s)

Cold Climate Housing Research Center,

CCHRC

Video describing radon precautions taken for a construction project in a high-risk radon area in Alaska.

Right – Apply caulk at the slab-to-wall joint to reduce pest intrusion

Right – Rigid foam is attached to the exterior of this foundation wall.

Publication Date

Mon, 09/30/2019 - 12:00

There is polyethylene sheeting installed to provide a capillary break between the ground and slab

Publication Date

Tue, 02/01/2011 - 12:00

Right - Basement slab with a capillary break of either gravel or a drainage mat.

Publication Date

Thu, 02/01/2018 - 12:00

A concrete slab floor can be elevated above local grade as a strategy to prevent flood damage.

Publication Date

Tue, 01/01/2013 - 12:00

Capillary Break at Crawlspace Floor - Polyethylene Sheeting under Concrete Slab

Guide describing how to install a capillary break to help manage moisture in foundations.

A method for preventing waterproofing issues at the intersection of a concrete slab and a rock anchor.

Publication Date

Tue, 09/17/2024 - 12:00

Epoxy paint is installed to provide a moisture control layer on the surface of an existing basement slab

Right - Potential locations for slab-on-grade stem insulation in new construction: slab insulation should always be underneath, with stem walls insulated (a) inside, (b) outside, (c) not at all, or (d) outside with underground extension to repel moisture.

Publication Date

Tue, 01/01/2013 - 12:00

This house with an insulated slab is protected from pests with a termite shield at the sill plate, borate-treated framing, insect screen covering bottom of furring air gap, and brick veneer over slab-edge insulation

Publication Date

Mon, 03/01/2021 - 12:00

Foundation heat exchanger installed in overcut around a basement wall

Video showing the installation of a foundation in a passive house.

Right - A corrugated metal closure conceals the exterior rigid insulation at the slab edge

Right – This wall is constructed with the sill plate overhanging the top of the foundation wall so that when rigid foam is installed on the exterior of the foundation wall, its surface will align with the surface of the wall sheathing.

Publication Date

Mon, 09/30/2019 - 12:00

Right - Retrofit of an existing basement slab by adding dimple plastic mat, rigid foam insulation, and a floating subfloor.

The existing slab is retrofitted by coating with epoxy paint, then installing rigid foam insulation and a floating subfloor.

Publication Date

Mon, 07/01/2013 - 12:00

Final Grade Slopes Away from Foundation

Guide describing how to properly grade a site so water will flow away from the foundation.

A method for preventing waterproofing issues at the intersection of a concrete pier, concrete retaining wall, and concrete slab.

Publication Date

Tue, 09/17/2024 - 12:00

Right – The drain slopes away from the foundation and terminates at the proper distance

An uninsulated (or existing insulated) basement slab is retrofitted to reduce moisture transmission by sealing with epoxy paint.

Publication Date

Thu, 09/10/2015 - 12:00

2021 IECC Climate Zone 3A: SIP Roof, SIP Wall, Stem Wall, Slab on Grade

Right - This concrete basement wall is insulated on the interior basement walls with spray foam and under the slab with rigid foam; footing details are shown.

Publication Date

Tue, 01/01/2013 - 12:00

2021 IECC Climate Zone 2A: Flat Roof, Unvented, 2x6 Wall, Monolithic Slab on Grade

Two inches (R-10) of rigid foam line the interior of the perimeter footing walls before the post-tensioned slab is poured.

Impervious surfaces like patio slabs, sidewalks, and driveways that are within 10 feet of the home should slope away from the house.

This plumbing pipe is wrapped with a stainless steel mesh skirt that is clamped to the pipe before the concrete slab is poured to to keep out bugs and rodents

Publication Date

Mon, 03/01/2021 - 12:00

Right - The existing basement slab is retrofitted by installing a dimple plastic drainage mat, rigid foam insulation, and a floating subfloor.

Publication Date

Mon, 07/01/2013 - 12:00

Pest-Resistant Ground Cover at Foundation Perimeter

Guide describing methods for installing pest-resistant ground cover around foundations to resist borrowing rodents and other pests.

Right - This poured concrete basement wall is insulated on the exterior and under the slab with rigid insulation; footing details include interior and exterior footing drain pipe.

Publication Date

Tue, 01/01/2013 - 12:00

Right – Polyethylene sheeting is laid over aggregate and over footing to provide a capillary break between the ground and the slab and between the footing and the stem wall

Polyethylene sheeting covers the aggregate and extends down and under the footing to provide a capillary break between the ground and the slab and monolithic footing

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