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2021 IECC Climate Zones 7 and 8: Vented Over-Roof, Unvented Cathedral Ceiling, 2x6 Wall, Interior Insulated Basement

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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 3A: Unvented Flat Roof with Continuous Insulation, Steel Frame Wall, Monolithic Slab on Grade

2021 IECC Climate Zone 3A: Unvented Flat Roof with Continuous Insulation, Steel Frame Wall, Monolithic Slab on Grade

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Building America Efficient Solutions for New Homes: Case Study: Habitat for Humanity Cold Climate High R-Value Prototype

Case Study

Case study describing an effort to create a comfortable, healthy, durable and energy efficient single family home.

2021 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 4C: Unvented Attic, 2x6 Wall with Exterior Insulation, Frost-Protected Shallow Foundation (with notes)

2021 IECC Climate Zone 4C: Unvented Attic, 2x6 Wall with Exterior Insulation, Frost-Protected Shallow Foundation (with notes)

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

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

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2021 IECC Climate Zone 3A: Unvented Flat Roof, 2x4 Wall with Exterior Insulation, Monolithic Slab on Grade (with notes)

2021 IECC Climate Zone 3A: Unvented Flat Roof, 2x4 Wall with Exterior Insulation, Monolithic Slab on Grade (with notes)

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Brick wall assembly for a hot-humid climate with no Class I vapor retarder and with an air gap (drained cavity) to dissipate vapor driven into the wall by the sun.

Brick wall assembly for a hot-humid climate with no Class I vapor retarder and with an air gap (drained cavity) to dissipate vapor driven into the wall by the sun.

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Masonry wall interior retrofit with fluid-applied water control layer and wood-framed wall with cavity insulation (climate zones 1-4 only)

Masonry wall interior retrofit with fluid-applied water control layer and wood-framed wall with cavity insulation (climate zones 1-4 only)

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2021 IECC Climate Zone 3A: Unvented Flat Roof with Continuous Insulation, Steel Frame Wall, Monolithic Slab on Grade (with notes)

2021 IECC Climate Zone 3A: Unvented Flat Roof with Continuous Insulation, Steel Frame Wall, Monolithic Slab on Grade (with notes)

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Construction Guide - Next Generation High Performance Walls in Climate Zones 3-5, Part II: 2x4 Walls with 1” - 1.5” Exterior Insulative Sheathing

Reference

The Guide addresses walls constructed with 2x4 wood frame studs, wood structural panel (WSP) sheathing as wall bracing and added backing for foam sheathing, a layer of rigid foam sheathing insulation up to 1.5 in. thick over the WSP, and a cladding system installed over the foam sheathing in low...

Walls in cold climates with a Class 3 vapor retarder (latex paint) and a vapor-open continuous insulation like mineral wool allow drying to the interior or the exterior

Walls in cold climates with a Class 3 vapor retarder (latex paint) and a vapor-open continuous insulation like mineral wool allow drying to the interior or the exterior

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In warm-humid climates, do not install Class 1 vapor retarders on the interior side of air-permeable insulation in above-grade walls, except at shower and tub walls.

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The “institutional” perfect wall works in all climate zones; water, air, vapor, and thermal control layers are exterior of the sheathing, assembly allows drying to interior and exterior

The “institutional” perfect wall works in all climate zones; water, air, vapor, and thermal control layers are exterior of the sheathing, assembly allows drying to interior and exterior

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Light colors have been used on exterior walls and roofs to keep buildings cooler in hot climates for centuries, as shown by this traditional building in Morocco, built in the early 1800s

Light colors have been used on exterior walls and roofs to keep buildings cooler in hot climates for centuries, as shown by this traditional building in Morocco, built in the early 1800s

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Masonry wall interior retrofit with fluid-applied water control layer, mineral wool rigid foam, and wood or metal stud service cavity (climate zones 1-4 only)

Masonry wall interior retrofit with fluid-applied water control layer, mineral wool rigid foam, and wood or metal stud service cavity (climate zones 1-4 only)

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Right – Half-inch furring strips provide a rain screen and air gap between the weather-resistant membrane and the fiber cement siding on the exterior walls of this marine-climate home.

Right – Half-inch furring strips provide a rain screen and air gap between the weather-resistant membrane and the fiber cement siding on the exterior walls of this marine-climate home.

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Masonry wall interior retrofit with parge coat, fluid-applied water control layer, mineral wool rigid foam, and wood or metal stud service cavity (climate zones 1-4 only)

Masonry wall interior retrofit with parge coat, fluid-applied water control layer, mineral wool rigid foam, and wood or metal stud service cavity (climate zones 1-4 only)

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Walls in cold climates with a polyethylene vapor barrier interior of the wall cavity should have either no exterior insulation or a vapor-open continuous insulation like mineral wool that allows drying to the exterior

Walls in cold climates with a polyethylene vapor barrier interior of the wall cavity should have either no exterior insulation or a vapor-open continuous insulation like mineral wool that allows drying to the exterior

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The builder in this very cold climate installed three layers of unfaced mineral wool batt in the double wall with a code-required vapor barrier between the middle and inner layers of wall insulation that is taped to barriers in the ceiling and floor.

The builder in this very cold climate installed three layers of unfaced mineral wool batt in the double wall with a code-required vapor barrier between the middle and inner layers of wall insulation that is taped to barriers in the ceiling and floor.

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A typical Las Vegas hot-dry climate home made of wood frame construction and insulated with R-25 expanded polystyrene externally over a drainage plane, with an unvented wood frame insulated attic and roof assembly.

A typical Las Vegas hot-dry climate home made of wood frame construction and insulated with R-25 expanded polystyrene externally over a drainage plane, with an unvented wood frame insulated attic and roof assembly.

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How to: REMOTE Wall System Part 2

Video

Video from Cold Climate Housing Research Center on complete wall system construction guidelines in cold climates. Part 2 of 2.

How to: REMOTE Wall System Part 1

Video

Video from Cold Climate Housing Research Center on complete wall system construction guidelines in cold climates. Part 1 of 2.

Analysis of Joint Masonry Moisture Content Monitoring

Reference

Report on adding insulation to load-bearing mass masonry buildings.

High Performance Builder Spotlight: NextGen Home, Las Vegas, Nevada

Reference

Case study of new home construction in the hot-dry and mixed-dry climate zones.

Using roof and wall materials with a high Solar Reflectance Index (SRI) will reduce heat gains.

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This house is sited so the existing trees will shade the west-facing walls to minimize summertime heat gain

This house is sited so the existing trees will shade the west-facing walls to minimize summertime heat gain

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Sources of heat gain in a house include solar gains, infiltration, conduction through walls and roof, occupants, and internal equipment

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