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2021 IECC Climate Zone 4C: Vented Attic, 2x4 wall with Exterior Insulation, Basement with Interior and Exterior Insulation

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2021 IECC Climate Zone 3A: Spray-foamed Roof, 2x6 wall, and Floor on Pier Foundation (with notes)

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2021 IECC Climate Zone 1A: Unvented Flat Roof, 2x4 Wall, Monolithic Slab on Grade (with notes)

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2021 IECC Climate Zone 3A: Unvented Attic, 2x4 Wall with Exterior Insulation, Unvented Crawlspace (with notes)

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

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This assembly for above-grade and below-grade garage walls in any climate zone uses continuous rigid insulation along the interior of the wall.

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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)

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

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Building America Special Research Project - High R-Value Enclosures for High Performance Residential Buildings in All Climate Zones, BA-1005

Reference

This report will review, and summarize the current state of understanding and research into enclosures with higher thermal resistance, so-called “High-R Enclosures.” Recommendations are provided for further research.

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

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This assembly for above-grade or below-grade garage walls in any climate zone uses a hybrid of continuous rigid insulation and cavity insulation on the interior side of the wall.

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Rigid insulation and air-sealing can be used to thermally isolate garages from multifamily row houses/town houses with basement foundations in IECC Climate Zones 3 or higher.

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Heated recirculation plenum spaces can be installed in parking garages in cold climates to prevent pipes from freezing and warm the floor of occupied space directly above the garage.

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This assembly can be used to thermally isolate heated or partially heated garages with slab foundations from the exterior in multifamily row houses/townhouses in IECC Climate Zones 3 and higher.

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This wall assembly for above-grade garage walls uses cavity insulation and should only be used in IECC Climate Zones 4 or lower due to the risk of condensation on the interior surface of the concrete wall.

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gutters and good drainage

Video

Video from Cold Climate Housing Research Center explaining how to correctly 'fur' and outside wall for maximum insulation protection.

High-Performance (ENERGY STAR) Windows

Guide

Guide providing information about high-performance and high-efficiency windows including ENERGY STAR-certified windows.

Continuous Air Barrier in Exterior Walls

Guide

Guide describing how to install continuous air barriers in exterior walls.

Integrated Truss House - How to install inset windows

Video

Video describing how to install an inset window in an integrated truss house built in cold climates like Alaska.

Double Walls for More Insulation

Guide

Guide describing construction and insulation techniques for double wall framing.

Mass Save Deep Energy Retrofit Builder Guide, GM-1302

Reference

Guidebook providing useful examples of high performance retrofit techniques for the building enclosure of wood frame residential construction in a cold and somewhat wet climate.

Deep Energy Retrofit Guidance for the Building America Solutions Center

Reference

Guidance document on deep energy retrofits.

ETW: Building Profile: New - Albuquerque New Mexico

Reference

Information sheet with details on a building enclosure designed for Albuquerque, NM, as an example for building enclosures built for hot-dry and mixed-dry climates.

Tips for Installing a Weather Resistive Barrier

Presentation

Webinar from Keenan Watson and Samantha Kambo of DuPont on how to correctly install a weather-resistant barrier on a home for code compliance effectiveness. Free EEBA login required.

Insulating Garages in Multifamily Buildings

Guide

Guide describing how to properly insulate garages in multifamily buildings.

Aerosol Envelope Sealing of Existing Residences

Reference

Report examining the effectiveness of an aerosolized acrylic technique for air sealing existing homes to reduce air leakage and improve energy efficiency.

Unvented-Cathedralized Attics: Where We've Been and Where We're Going, RR-9904

Reference

Report focusing on the performance and durability of unvented-cathedralized attics in hot-humid climates with both tile and asphalt shingle roofing.

Batt Insulation for Existing Exterior Walls

Guide

Guide describing how to achieve RESNET Grade 1 installation standards, and meet/exceed code using batt insulation in existing walls.

Unvented Attic Insulation

Guide

Guide describing methods for insulating an unvented attic along the roof line.