Guides A-Z

This guides describes how to insulate and air seal attic knee walls and floor joist cavities under knee walls.

Guide describing how to air seal and insulate a cantilevered floor.

Guide describing how to air seal and insulate a ceiling.

This guide describes air barrier and insulation installation, along with air sealing for double walls - half or full walls included in a home design as an architectural feature that provides a more dimensional appearance.

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

Guide describing how to create an air barrier between the garage and the conditioned space above it to prohibit pollutants from entering a home's interior.

Guide describing how to install a continuous rigid air barrier or other supporting material to separate the exterior from the conditioned space.

Guide describing the air sealing of rim joists on walls connecting homes and attached garages.

Guide describing how to install fully-aligned air barriers in exterior walls.

Guide describing insulation techniques for skylight shaft walls.

Guide describing how to create a fully aligned air barrier behind a staircase.

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

This guide describes how to install a rigid air barrier to walls behind fireplaces.

This guide describes how to install a rigid air barrier to walls behind showers and tubs.