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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.

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Deep-Dish Retrofits, BSI-079

Reference

Report covering exterior energy retrofits of masonry buildings.

Building America Existing Home Case Study: Insulated Siding Retrofit in a Cold Climate, New Paltz, New York

Case Study

Case study describing the application of insulated siding on an existing home.

Vented versus Unvented Attic

Guide

Guide describing options for insulating and air sealing at either the attic floor or along the roof line in new homes.

Foundation Wall Exterior board insulation without above-grade wall insulation

CAD File

Providing a Thermal Break in Gut Rehabs

Reference

Information sheet about how to reduce thermal bridging in walls.

Venting Vapor, BSI-088

Reference

Guide providing information on controlling attic ductwork sweating.

Measure Guideline: Hybrid Foundation Insulation Retrofits

Reference

Document providing information on basement insulation, air sealing and water management retrofits.

2021 IECC Climate Zone 5: Vented Attic, 2x4 Wall, Interior Insulated Basement

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Wrong – There is no weather stripping or gasket around the attic stair hatch

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Small Commercial Building Fact Sheet - Building Envelope

Reference

Fact sheet describing building envelope performance measures applicable to residential and small commercial construction.

Foundation wall exterior board insulation with above-grade wall insulation

CAD File

Still Placing Ducts in the Attic? Consider Burying Them

Reference

Information sheet about buried ducts.

This exterior insulated slab-on-grade monolithic grade beam foundation is protected from pests by termite shield at the sill plate, borate-treated framing, flashing at end of wall insulation, brick veneer over slab-edge insulation, and rock ground cover.

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Building America Case Study Technology Solutions for Existing Homes: Bedford Farmhouse High Performance Retrofit Prototype

Case Study

Case study describing project conducted by Habitat for Humanity of Greater Lowell (HfHGL) and Building Science Corporation (BSC).

Technology Solutions Case Study: Idaho, Oregon, and Washington Manufactured Home Builders

Case Study

Case study describing a package of energy- efficiency measures for new manufactured homes in the Pacific Northwest, including triple-pane highly efficient windows.

2021 IECC Climate Zone 5: Vented Attic, 2x4 Wall, Interior Insulated Basement (with notes)

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Wrong – No blocking installed to prevent attic insulation from falling into stairs and opening

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Wrong – Drop down stairs do not have insulation cover installed

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Wrong – Attic access panel does not have an insulation cover installed

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Sprinkler Insulation

Reference

Literature review from NFPA on the use of insulation to protect the piping in home fire sprinkler systems from freezing conditions.

Existing Whole-House Solutions Case Study: Group Home Energy Efficiency Retrofit for 30% Energy Savings, Washington, D.C.

Case Study

Case study describing a multifamily, affordable housing retrofit project that achieved 44% energy savings using readily available, cost effective measures.

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.

Deep-Dish Retrofits, BSI-079

Building America Existing Home Case Study: Insulated Siding Retrofit in a Cold Climate, New Paltz, New York

Vented versus Unvented Attic

Foundation Wall Exterior board insulation without above-grade wall insulation

Providing a Thermal Break in Gut Rehabs

Venting Vapor, BSI-088

Measure Guideline: Hybrid Foundation Insulation Retrofits

2021 IECC Climate Zone 5: Vented Attic, 2x4 Wall, Interior Insulated Basement

Wrong – There is no weather stripping or gasket around the attic stair hatch

Small Commercial Building Fact Sheet - Building Envelope

Foundation wall exterior board insulation with above-grade wall insulation

Still Placing Ducts in the Attic? Consider Burying Them

This exterior insulated slab-on-grade monolithic grade beam foundation is protected from pests by termite shield at the sill plate, borate-treated framing, flashing at end of wall insulation, brick veneer over slab-edge insulation, and rock ground cover.

Building America Case Study Technology Solutions for Existing Homes: Bedford Farmhouse High Performance Retrofit Prototype

Technology Solutions Case Study: Idaho, Oregon, and Washington Manufactured Home Builders

2021 IECC Climate Zone 5: Vented Attic, 2x4 Wall, Interior Insulated Basement (with notes)

Wrong – No blocking installed to prevent attic insulation from falling into stairs and opening

Wrong – Drop down stairs do not have insulation cover installed

Wrong – Attic access panel does not have an insulation cover installed

Sprinkler Insulation

Existing Whole-House Solutions Case Study: Group Home Energy Efficiency Retrofit for 30% Energy Savings, Washington, D.C.

Concrete masonry basement wall with exterior insulation.

Concrete crawlspace wall with exterior insulation.

Crawl space with exterior insulation

Benefits of foundation insulation and other design improvements

Slab-on-grade termite control techniques

Interior details of an insulated closed crawlspace

Freeze Protection for CPVC Fire Sprinkler Piping Guide

Right - Basement with interior semi-permeable XPS or EPS insulation.