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Right - Closed-cell spray foam is used to retrofit an existing rubble basement foundation wall.

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Tornado Protection - Selecting Refuge Areas in Buildings, FEMA P-431

Reference

Report presenting information that aids qualified architects and engineers in the identification of the best available refuge areas in existing buildings for sheltering in place during a tornado.

Innovation in Frost Protected Shallow Foundations

Reference

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

Reference

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.

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

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

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

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NFIP Technical Bulletin 1: Requirements for Flood Openings in Foundation Walls and Walls of Enclosures - Below Elevated Buildings in Special Flood Hazard Areas

Reference

Document describing guidance and requirements for flood openings in walls at and below grade.

Spray foam extends down the foundation wall to the slab, which has been retrofitted by adding dimple plastic drainage mat and rigid foam insulation.

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Rigid insulation and water control layers are installed on the exterior of a flat foundation wall; spray foam insulates the rim joist

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Flood Series: Pumping out a flooded basement

Video

This video describes and shows a safe process to remove water from a basement after a flood.

Increase Seismic Resistance and Thermal Performance of Basement, Crawl Space, and Crawl Space with Cripple Wall Foundations

Guide

Guide describing different options for providing seismic and thermal resistance for homes with basement foundations, crawlspace foundations, or crawlspace foundations with a "cripple" wall.

Spray foam extends down the inside of the foundation wall to the uninsulated slab; because the wall lacked exterior perimeter drainage, the slab was cut and an interior footing drain was installed.

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Unvented, Insulated Crawlspaces

Guide

Guide describing method for insulating an unvented crawlspace or conditioned basement with rigid foam on the interior side of the walls.

Revised Builder’s Guide to Frost Protected Shallow Foundations

Reference

Report describing how to construct a frost protected shallow foundation (FPSF) as a practical alternative to a deeper, more-costly foundation in cold regions with seasonal ground freezing and the potential for frost heave.

UMN NorthernSTAR: DOE Building America: Exterior Foundation Insulation

Video

Video describing an “excavationless” retrofit technique developed by the University of Minnesota to install exterior insulation around the foundation of an existing home by using high-pressure water to cut a trench through the dirt along the edge of a concrete foundation, remove the mud with a...

No Vapor Retarders on Interior Side of Air-Permeable Foundation Insulation

Guide

Vapor retarder plastic should not be installed over fibrous insulation on basement or crawlspace walls; rigid foam or spray foam should be installed directly against the concrete, behind the blanket insulation.

Spray foam insulation extends down the foundation wall to the slab, which has been retrofitted by cutting the slab to install drainage mat against the wall and a new perimeter footing drain, along with rigid foam plastic above the slab.

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Damp-Proof Exterior Surface of Below-Grade Walls

Guide

Guide describing how to apply water management strategies to below-grade walls.

Why We Need to Know More About Basement Moisture

Reference

Conference paper presented at the 8th International Conference on Thermal Performance of Exterior Envelopes of Whole Buildings describing moisture from basements and crawlspaces as a source of indoor humidity and providing recommendations for finishing below-grade spaces to limit potential indoor...

Right - Closed-cell spray foam is used to retrofit an existing rubble basement foundation wall.

Tornado Protection - Selecting Refuge Areas in Buildings, FEMA P-431

Innovation in Frost Protected Shallow Foundations

Innovation in Frost Protected Shallow Foundations

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

Right - The existing basement slab is retrofitted by installing a dimple plastic drainage 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.

NFIP Technical Bulletin 1: Requirements for Flood Openings in Foundation Walls and Walls of Enclosures - Below Elevated Buildings in Special Flood Hazard Areas

Spray foam extends down the foundation wall to the slab, which has been retrofitted by adding dimple plastic drainage mat and rigid foam insulation.

Rigid insulation and water control layers are installed on the exterior of a flat foundation wall; spray foam insulates the rim joist

Flood Series: Pumping out a flooded basement

Increase Seismic Resistance and Thermal Performance of Basement, Crawl Space, and Crawl Space with Cripple Wall Foundations

Spray foam extends down the inside of the foundation wall to the uninsulated slab; because the wall lacked exterior perimeter drainage, the slab was cut and an interior footing drain was installed.

Unvented, Insulated Crawlspaces

Revised Builder’s Guide to Frost Protected Shallow Foundations

UMN NorthernSTAR: DOE Building America: Exterior Foundation Insulation

No Vapor Retarders on Interior Side of Air-Permeable Foundation Insulation

Spray foam insulation extends down the foundation wall to the slab, which has been retrofitted by cutting the slab to install drainage mat against the wall and a new perimeter footing drain, along with rigid foam plastic above the slab.

Damp-Proof Exterior Surface of Below-Grade Walls

Why We Need to Know More About Basement Moisture

Air Sealed, Insulated Basements

Rigid Foam Board Interior Insulation for Existing Foundation Walls

Water Management of Existing Basement Floor

Drain or Sump Pump Installed in Basements or Crawlspaces

Sump Pump Cover Gasket

Flood-Resistant Crawlspace Foundations

Radon Fan

Pre-Retrofit Assessment of Crawlspaces and Basements

Rigid Foam Board Insulation for Existing Band Joists

Vertical Radon Ventilation Pipe