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2021 IECC Climate Zone 3B: SIP Roof, SIP Wall, Stem Wall, Slab on Grade

2021 IECC Climate Zone 3B: SIP Roof, SIP Wall, Stem Wall, Slab on Grade

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2021 IECC Climate Zone 4A: SIP Roof, SIP Wall, Stem Wall, Slab on Grade

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2021 IECC Climate Zone 3C: SIP Roof, SIP Wall, Stem Wall, Slab on Grade

2021 IECC Climate Zone 3C: SIP Roof, SIP Wall, Stem Wall, Slab on Grade

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2021 IECC Climate Zone 4B: SIP Roof, SIP Wall, Stem Wall, Slab on Grade

2021 IECC Climate Zone 4B: SIP Roof, SIP Wall, Stem Wall, Slab on Grade

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Right - This concrete basement wall is insulated on the interior basement walls with spray foam and under the slab with rigid foam; footing details are shown.

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2021 IECC Climate Zone 1A: Flat Roof, Unvented, 2x6 Wall, Monolithic Slab on Grade

2021 IECC Climate Zone 1A: Flat Roof, Unvented, 2x6 Wall, Monolithic Slab on Grade

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2021 IECC Climate Zone 2A: Flat Roof, Unvented, 2x6 Wall, Monolithic Slab on Grade

2021 IECC Climate Zone 2A: Flat Roof, Unvented, 2x6 Wall, Monolithic Slab on Grade

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2021 IECC Climate Zone 2B: Flat Roof, Unvented, 2x6 Wall, Monolithic Slab on Grade

2021 IECC Climate Zone 2B: Flat Roof, Unvented, 2x6 Wall, Monolithic Slab on Grade

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Right - Rigid foam is installed over a waterproofing membrane that has been applied to the basement foundation walls.

Right - Rigid foam is installed over a waterproofing membrane that has been applied to the basement foundation walls.

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2021 IECC Climate Zone 4A: Vented Cathedral Ceiling, 2x6 Wall, Slab on Grade (with notes)

2021 IECC Climate Zone 4A: Vented Cathedral Ceiling, 2x6 Wall, Slab on Grade (with notes)

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2021 IECC Climate Zone 4B: Vented Cathedral Ceiling, 2x6 Wall, Slab on Grade (with notes)

2021 IECC Climate Zone 4B: Vented Cathedral Ceiling, 2x6 Wall, Slab on Grade (with notes)

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2021 IECC Climate Zone 4C: Vented Cathedral Ceiling, 2x6 Wall, Slab on grade (with notes)

2021 IECC Climate Zone 4C: Vented Cathedral Ceiling, 2x6 Wall, Slab on grade (with notes)

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Polyethylene sheeting covers the aggregate and extends down and under the footing to provide a capillary break between the ground and the slab and monolithic footing

Polyethylene sheeting covers the aggregate and extends down and under the footing to provide a capillary break between the ground and the slab and monolithic footing

CAD File

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

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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Right - This poured concrete basement wall is insulated on the exterior and under the slab with rigid insulation; footing details include interior and exterior footing drain pipe.

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2021 IECC Climate Zone 1A: Flat Roof, Unvented, 2x6 Wall, Monolithic Slab on Grade (with notes)

2021 IECC Climate Zone 1A: Flat Roof, Unvented, 2x6 Wall, Monolithic Slab on Grade (with notes)

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2021 IECC Climate Zone 2A: Flat Roof, Unvented, 2x6 Wall, Monolithic Slab on Grade (with notes)

2021 IECC Climate Zone 2A: Flat Roof, Unvented, 2x6 Wall, Monolithic Slab on Grade (with notes)

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2021 IECC Climate Zone 2B: Flat Roof, Unvented, 2x6 Wall, Monolithic Slab on Grade (with notes)

2021 IECC Climate Zone 2B: Flat Roof, Unvented, 2x6 Wall, Monolithic Slab on Grade (with notes)

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Exterior Insulation for Existing Foundation Walls

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

IECC Climate Zone 1A: Unvented Attic with Spray foam at Roof Deck, 2x6 Wall-CMU Wall, Elevated Slab

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IECC Climate Zone 2A: Unvented Attic with Spray Foam at Roof Deck, 2x6 Wall/CMU Wall, Elevated Slab

IECC Climate Zone 2A: Unvented Attic with Spray Foam at Roof Deck, 2x6 Wall/CMU Wall, Elevated Slab

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IECC Climate Zone 2A: Unvented Attic with Spray Foam at Roof Deck, 2x6 Wall/CMU Wall, Elevated Slab

IECC Climate Zone 2A: Unvented Attic with Spray Foam at Roof Deck, 2x6 Wall/CMU Wall, Elevated Slab

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2021 IECC Climate Zone 2A: Unvented Attic with Spray Foam at Roof Deck, 2x6 Wall-CMU Wall, Elevated Slab

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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

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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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.

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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Right – Two inches of rigid foam was installed on the ground before pouring the basement floor slab while precast, pre-insulated concrete panels comprise the basement walls.

Right – Two inches of rigid foam was installed on the ground before pouring the basement floor slab while precast, pre-insulated concrete panels comprise the basement walls.

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Rigid Foam Board Interior Insulation for Existing Foundation Walls

Guide

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

Good water management practices like sloping grade away from house, and installing gutters, perimeter drain pipe, a capillary break, and free-draining soils or drainage mat protect the foundation from water saturation.

Good water management practices like sloping grade away from house, and installing gutters, perimeter drain pipe, a capillary break, and free-draining soils or drainage mat protect the foundation from water saturation.

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Passive House Underslab Foam & Vapor Barrier: Karuna Video #6

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Video describing the under slab and vapor barrier used on a passive house.

Concrete masonry basement wall with exterior insulation.

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