BASC Search | Building America Solution Center

This basement is insulated on the exterior with rigid foam over dampproofing, with granular backfill and footing drains to facilitate drainage away from the foundation, a termite shield to protect from pests, and cellular PVC to protect the rigid foam.

Publication Date

Mon, 03/01/2021 - 12:00

Stucco Over Rigid Foam Insulation

Guide describing how to install stucco over rigid foam insulation in new and existing homes.

Blown Insulation for Cavities of Existing Exterior Walls

Guide describing blown insulation into exterior wall cavities of existing homes with minimal disruption to occupants.

Rigid Foam Board Interior Insulation for Existing Foundation Walls

Guide describing how to insulate closed crawlspace walls and band joist areas with rigid foam board insulation.

Air Sealed, Insulated Basements

Guide describing how to insulate a basement to improve the overall thermal performance of the building and provide more dry, usable conditioned space for home occupants and HVAC equipment.

Air Sealing and Insulating Walls to Reduce Heat Gain

Information guide listing Building America Solution Center guides that describe ways to air-seal and insulate a new or existing home's walls to resist heat gain.

Water Managed Existing Sill Beams and Sill Plates

Guide describing how to insulate the sill beam or sill plate on the exterior side in a way that allows drying to the exterior, as part of an exterior wall upgrade.

Water Managed Roof – Re-roofing and Adding Insulation Over a Sloped Roof

Guide describing how to re-roof an existing home with a sloped and add insulation above the roof deck.

Vinyl Siding with Integrated Rigid Foam for Existing Walls

Guide describing the design and installation considerations for recladding of above grade walls using insulated vinyl siding.

Water Managed Roof – Re-roofing and Adding Insulation over a Flat Roof

Guide describing an approach to re-roofing an existing flat roof to improve thermal, water, and air control performance.

Walls Adjoining Porch Roof

This guide describes how to install a rigid air barrier to separate the porch attic from the conditioned space.

Unvented Attic Insulation

Guide describing methods for insulating an unvented attic along the roof line.

Rigid Foam Insulation for Existing Exterior Walls

Guide describing how to apply an air control layer directly over existing wall sheathing and cover with two layers of insulating sheathing held in place by vertical furring strips.

Sealing and Insulating Existing Exterior Walls - Code Compliance Brief

Publication Date

May, 2016

The intent of this brief is to provide code-related information about sealing and insulating existing walls in existing residential buildings to help ensure that the measures will be accepted as being in compliance with the code. Providing notes for code officials on how to conduct plan reviews and field inspections can provide jurisdictional officials with information for acceptance. Providing the same information to builders, contractors, designers, and others is expected to result in increased compliance and fewer innovations being questioned at the time of plan review and/or field inspection.

Sealing and Insulating Existing Crawl Space Walls - Code Compliance Brief

Publication Date

May, 2016

The intent of this brief is to provide code-related information about sealing and insulating crawl space walls in existing residential buildings to help ensure that the measures will be accepted as being in compliance with the code. Providing the same information to all interested parties (e.g., code officials, builders, contractors, designers, etc.) is expected to result in increased compliance and fewer innovations being questioned at the time of plan review and/or field inspection.