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Material Properties of Rigid foam Insulation

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Install all layers of the drainage plane to overlap, not underlap, to direct bulk water down and out of the wall.

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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.

Understanding Air Barriers, BSD-104

Reference

Information sheet providing definitions, applications, and techniques for applying air barriers.

Insulating sheathing is installed on exterior of an existing framed wall with water control between existing sheathing and insulating sheathing

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Attic Knee Walls

Guide

Guide describing how to insulate and air-seal attic knee walls and floor joist cavities under knee walls.

Air Sealed, Insulated Basements

Guide

Guide describing how to insulate a basement to improve the overall thermal performance of the building and provide more dry, usable conditioned space for home occupants and HVAC equipment.