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Guides A-Z

Guide describing how to correctly air seal a wall with missing top plates or open wall cavities. 

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 for HVAC equipment.

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

Guide describing ways to seal drywall to the top plate of an exterior wall to air seal the wall cavity.

Guide describing how to air seal the gap between the drywall shaft wall (i.e., common wall) and the structural framing between units in multifamily housing.

Guide describing how to air seal sill plates in new and existing homes.

Guide describing blown insulation into exterior wall cavities of existing homes with minimal disruption to occupants.

Guide describing how to upgrade a wall with a floor overhang (or cantilever) on an existing home by adding rigid insulating sheating and or closed-cell spray foam insulation and air sealing.

Guide describing how to apply an air control layer directly over existing wall sheathing, and cover by two layers of insulating sheathing held in place by vertical furring strips.

Guide describing insulation techniques for skylight shaft walls.

Guide describing how to install stucco over rigid foam insulaiton in new and existing homes.

Guide describing the design and installation considerations for recladding of above grade walls using insulated vinyl siding.

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