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Roofs, Attics & Ceilings


Solution Center Guides


This guide provides information about installing Insulating sheathing above the roof deck on existing homes. This retrofit assembly is appropriate for homes with conditioned attics or where the retrofit is intended to create a conditioned attic.

Guide describing ways to air seal an attached garage in new and existing homes.

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

Guide describing application of a radiant barrier layer in the attic to block radiant heat transfer between hot surfaces and heat-absorbing surfaces.

Guide describing how to air seal and insulate a ceiling.

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 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 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 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 wind washing and how to prevent it.