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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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2021 IECC Climate Zone 3A: Vented Cathedral Ceiling, 2x6 Wall, Vented Crawl Space

2021 IECC Climate Zone 3A: Vented Cathedral Ceiling, 2x6 Wall, Vented Crawl Space

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

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Install wood framing cross pieces in the attic rafter bays on each side of the duct chase

Install wood framing cross pieces in the attic rafter bays on each side of the duct chase

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Right - Foil-faced polyisocyanurate rigid foam is attached to the existing exterior wall with vertical wood furring strips

Right - Foil-faced polyisocyanurate rigid foam is attached to the existing exterior wall with vertical wood furring strips

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Rigid foam serves as the sheathing on these 2x6 24-inch on center walls; plywood is used only at the corners for wind bracing.

Rigid foam serves as the sheathing on these 2x6 24-inch on center walls; plywood is used only at the corners for wind bracing.

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Seams in the ICF block are sealed so the EPS foam surface can serve as the drainage plane; no house wrap is needed.

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Step 8. Attach the new cladding to the furring strips over the rigid foam for the exterior wall retrofit.

Step 8. Attach the new cladding to the furring strips over the rigid foam for the exterior wall retrofit.

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Building Science Education 3.7: Calculating R-Values for a Wall Part 1

Presentation

Video demonstrating how to calculate R-values for a simple wall construction.

Building Science Education 3.8: Calculating R-Values for a Wall Part 2

Presentation

Video demonstrating how to calculate R-values for a simple wall construction.

Use hat channels attached to the steel studs with stainless steel screws through the rigid foam to attach cladding with less thermal bridging

Use hat channels attached to the steel studs with stainless steel screws through the rigid foam to attach cladding with less thermal bridging

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

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

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

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

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

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

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IECC Climate Zone 3A: Vented Cathedral Celling, 2x6 Wall, Vented Crawl Space

IECC Climate Zone 3A: Vented Cathedral Celling, 2x6 Wall, Vented Crawl Space

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

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

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

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

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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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2021 IECC Climate Zone 4C: Vented Attic, ICF Wall, ICF Basement Foundation (with notes)

2021 IECC Climate Zone 4C: Vented Attic, ICF Wall, ICF Basement Foundation (with notes)

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Double Walls

Video

Video describing double stud walls.

Other Exterior Walls

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Video describing how to properly air seal exterior walls.

After attaching netting to the 2x6 studs, workers fill the wall cavities with R-23 of blown fiberglass made from recycled bottles.

After attaching netting to the 2x6 studs, workers fill the wall cavities with R-23 of blown fiberglass made from recycled bottles.

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Right – Housewrap was properly shingled and taped on this wall assembly which places the housewrap beneath the rigid foam sheathing; wall cavities will be filled with spray foam.

Right – Housewrap was properly shingled and taped on this wall assembly which places the housewrap beneath the rigid foam sheathing; wall cavities will be filled with spray foam.

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Right – Furring strips provide a drainage gap between the rigid foam and the siding.

Right – Furring strips provide a drainage gap between the rigid foam and the siding.

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Masonry wall interior retrofit with parge coat, fluid-applied water control layer, spray foam, and wood or metal stud service cavity

Masonry wall interior retrofit with parge coat, fluid-applied water control layer, spray foam, and wood or metal stud service cavity

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Building Science Education 3.14: Calculating R-Values for a Wall Part 3

Presentation

Video demonstrating how to calculate R-values for a simple wall construction.

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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