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Right – Rigid air barrier installed between double-wall assembly. Inside cavity will be insulated

Right – Rigid air barrier installed between double-wall assembly. Inside cavity will be insulated

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Right – Spray foam completely fills the wall cavities, providing a thorough layer of insulation behind electrical boxes.

Right – Spray foam completely fills the wall cavities, providing a thorough layer of insulation behind electrical boxes.

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Extension boxes of plywood built around the windows on this wall retrofit will be flush with the outer layer of exterior rigid insulation

Extension boxes of plywood built around the windows on this wall retrofit will be flush with the outer layer of exterior rigid insulation

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In two-story homes, the air barrier separating the wall insulation from the porch attic is sometimes missing

In two-story homes, the air barrier separating the wall insulation from the porch attic is sometimes missing

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The home’s first-floor walls are constructed of insulated precast concrete panels that are set in place on a gravel bed.

The home’s first-floor walls are constructed of insulated precast concrete panels that are set in place on a gravel bed.

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Standard Specification for Flat Wall Insulating Concrete Form (ICF) Systems, ASTM E2634-18(2022)

Reference

A specification covering the application of Insulating Concrete Forms (ICFs) that act as permanent formwork for cast-in-place reinforced concrete beams & walls which was published in the year 2022 and is available for preview and purchase at the reference link.

2021 IECC Climate Zone 4C: Vented Attic, 2x4 Wall, Interior Insulated Basement (with notes)

2021 IECC Climate Zone 4C: Vented Attic, 2x4 Wall, Interior Insulated Basement (with notes)

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2021 IECC Climate Zone 6A:Vented Attic, Interior Double Wall, Interior Insulated Basement

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Right-Wall-insulating sheathing is extended up to roof rafters and sealed around the framing with spray foam

Right-Wall-insulating sheathing is extended up to roof rafters and sealed around the framing with spray foam

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Wrong – If the insulated sheathing will serve as an air barrier and drainage plane, any cuts and seams must be taped or sealed.

Wrong – If the insulated sheathing will serve as an air barrier and drainage plane, any cuts and seams must be taped or sealed.

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Special molded corners provide continuous insulation layer at the corners to improve structural strength and minimize thermal bridging

Special molded corners provide continuous insulation layer at the corners to improve structural strength and minimize thermal bridging

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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.

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

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

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Rigid foam insulation applied to the crawlspace walls, allowing a 3-in. pest control inspection strip at the top

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Rigid foam insulated sheathing placed exterior to house wrap, interior to house wrap, or take the place of the house wrap

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Tape the joint between the top insulation sheet and the Z-flashing with 2" wide tape to improve air tightness

Tape the joint between the top insulation sheet and the Z-flashing with 2" wide tape to improve air tightness

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Wrong – Insulation does not fill entire cavity nor is there an air barrier present between the double wall

Wrong – Insulation does not fill entire cavity nor is there an air barrier present between the double wall

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Right – This attic knee wall and the floor joist cavity openings beneath it are being sealed and insulated with spray foam.

Right – This attic knee wall and the floor joist cavity openings beneath it are being sealed and insulated with spray foam.

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Right – The flashing is properly installed to create a complete drainage system with continuous rigid insulation sheathing/siding

Right – The flashing is properly installed to create a complete drainage system with continuous rigid insulation sheathing/siding

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Right – Mineral wool batt insulation is cut to fit snuggly and to fully fill wall cavities with minimal voids and gaps.

Right – Mineral wool batt insulation is cut to fit snuggly and to fully fill wall cavities with minimal voids and gaps.

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Insulated splines consisting of boards layered with rigid foam minimize energy loss at joints between the SIP wall panels.

Insulated splines consisting of boards layered with rigid foam minimize energy loss at joints between the SIP wall panels.

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Right - Precast concrete basement walls come to the site with integrated rigid foam insulation and steel-faced concrete studs.

Right - Precast concrete basement walls come to the site with integrated rigid foam insulation and steel-faced concrete studs.

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Right - Spray foam fills the walls and rim joists to air seal and insulate while caulk seals the framing joints.

Right - Spray foam fills the walls and rim joists to air seal and insulate while caulk seals the framing joints.

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Insulating sheathing is extended up to the roof rafters and sealed around the framing with spray foam as part of this exterior wall retrofit

Insulating sheathing is extended up to the roof rafters and sealed around the framing with spray foam as part of this exterior wall retrofit

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2021 IECC Climate Zone 6: Vented Cathedral ceiling, 2x6 Wall, interior Insulated Basement (with notes)

2021 IECC Climate Zone 6: Vented Cathedral ceiling, 2x6 Wall, interior Insulated Basement (with notes)

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2021 IECC Climate Zone 7 and 8: Vented Cathedral Ceiling, 2x6 Wall, Interior Insulated Basement (with notes)

2021 IECC Climate Zone 7 and 8: Vented Cathedral Ceiling, 2x6 Wall, Interior Insulated Basement (with notes)

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2021 IECC Climate Zone 4C: Vented Attic, Exterior Double Wall, Interior Insulated Basement (with notes)

2021 IECC Climate Zone 4C: Vented Attic, Exterior Double Wall, Interior Insulated Basement (with notes)

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2021 IECC Window Detail: Framed Wall with Rigid Insulation and Siding (Wood, Fiber Cement, Aluminum or Vinyl)

2021 IECC Window Detail: Framed Wall with Rigid Insulation and Siding (Wood, Fiber Cement, Aluminum or Vinyl)

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The walls and floors of this modular home were constructed in a factory and are brought to the site already insulated and ready for quick assembly.

The walls and floors of this modular home were constructed in a factory and are brought to the site already insulated and ready for quick assembly.

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If HVAC duct must be installed in an exterior wall, separate it from the exterior with at least R-6 of continuous rigid insulation

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