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Foundation wall exterior board insulation with above-grade wall insulation

CAD File

Insulate Your Basement, Part 3: Insulate the Walls and Rim Joists

Video

Video describing how to use foam insulation on masonry walls, and how to properly insulate the rim joist area with rigid foam and batt insulation.

Foundation Wall Exterior board insulation without above-grade wall insulation

CAD File

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

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How to Insulate a Basement

Video

Video describing how to warm up a chilly concrete wall with This Old House general contractor Tom Silva.

Right - This concrete basement wall is insulated on the interior with rigid insulation; sill details are shown.

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Crawl space interior insulation with EPS or XPS semi-permeable insulation on inside wall

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Air Sealed, Insulated Basements

Guide

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.

Right - The basement foundation is insulated on the exterior and termite shield extends out past the top of the insulation.

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Right - This concrete basement wall is insulated on the interior with spray foam insulation; sill detail are shown.

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Crawl space with exterior insulation

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Rigid Insulation Over Aggregate

CAD File

Foil Bubble Pack: Subslab Insulation?

Reference

Article describing the effective R-values of various subslab insulation products, including foil bubble pack.

Basement Insulation Systems, BA-0202

Reference

Report describing approaches to insulating basements in homes built to meet Energy Star levels of performance of heat loss reduction.

Exterior Insulation for Existing Foundation Walls

Guide

Guide describing how to insulate a new foundation wall or an existing foundation wall by adding rigid insulation to the exterior side.

Concrete crawlspace wall with exterior insulation.

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Vented crawl space with insulation in the ceiling

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Rigid foam insulation in vent areas

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Band joist insulation and air sealing

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Interior details of an insulated closed crawlspace

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Right – Spray foam insulation was sprayed onto the ground and along the sides of the foundation walls and piers of this insulated crawl space.

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Right – Insulated concrete forms (ICFs) provide the insulated stem wall for the slab-on-grade foundation for this SIP house.

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Wrong - Moisture from within the basement foundation wall can migrate into the insulation cavity in a conventional blanket insulation installation.

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Right - Potential locations for basement insulation in new construction, slab insulation should always be underneath, with walls insulated (a) inside, (b) outside, (c) sandwiched inside, or (d) inside and outside of walls.

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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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Foundation wall exterior board insulation with above-grade wall insulation

Insulate Your Basement, Part 3: Insulate the Walls and Rim Joists

Foundation Wall Exterior board insulation without above-grade wall insulation

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

How to Insulate a Basement

Right - This concrete basement wall is insulated on the interior with rigid insulation; sill details are shown.

Crawl space interior insulation with EPS or XPS semi-permeable insulation on inside wall

Air Sealed, Insulated Basements

Right - The basement foundation is insulated on the exterior and termite shield extends out past the top of the insulation.

Right - This concrete basement wall is insulated on the interior with spray foam insulation; sill detail are shown.

Crawl space with exterior insulation

Rigid Insulation Over Aggregate

Foil Bubble Pack: Subslab Insulation?

Basement Insulation Systems, BA-0202

Exterior Insulation for Existing Foundation Walls

Concrete crawlspace wall with exterior insulation.

Vented crawl space with insulation in the ceiling

Rigid foam insulation in vent areas

Band joist insulation and air sealing

Interior details of an insulated closed crawlspace

Right – Spray foam insulation was sprayed onto the ground and along the sides of the foundation walls and piers of this insulated crawl space.

Right – Insulated concrete forms (ICFs) provide the insulated stem wall for the slab-on-grade foundation for this SIP house.

Wrong - Moisture from within the basement foundation wall can migrate into the insulation cavity in a conventional blanket insulation installation.

Right - Potential locations for basement insulation in new construction, slab insulation should always be underneath, with walls insulated (a) inside, (b) outside, (c) sandwiched inside, or (d) inside and outside of walls.

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

Exterior Edge Insulation for Existing Foundation Slabs

Measure Guideline: Hybrid Foundation Insulation Retrofits

Assembly Sequence for Concrete Wall with Exterior Insulation

Crawl Spaces: Exterior vs Interior Insulation

Concrete masonry basement wall with exterior insulation.