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Guides A-Z

Guide describing options for designing/locating the thermal boundary in new and existing homes.

Guide describing how to insulate and air seal dropped ceilings and soffits to prevent air leakage.

Guide describing how to repair or replace skylights in existing homes. 

Guide describing how to conduct a home performance assessment before beginning retrofit projects in existing homes.

Guide describing how to upgrade walls that separate the garage from the house by providing a continuous air control layer on the garage side of the wall and adding rigid foam insulation.

Guide outlining how to retrofit an exterior wall and/or attic to provide continuous air sealing.

Guide describing insulation techniques for skylight shaft walls.

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

This guide describes how to install a rigid air barrier to separate the porch attic from the conditioned space. 

Guide describing an approach to re-roofing an existing flat roof to improve thermal, water, and air control performance.

Guide describing how to re-roof an existing home with a sloped roof.