Roofs, Attics & Ceilings -

Air Sealing/Insulation

Guide describing how to air-seal attic access panels, doors, and stairs to provide a continuous air barrier at the ceiling.

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

Guide providing guidance on insulating attic eaves in new and existing single-family homes and multifamily buildings.

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

Guide describing causes of condensation in attics and roof assemblies during cold weather and ways to reduce this condensation.

Guide describing how ice dams form and how roofs can be constructed to prevent them.

A guide describing how to install low-sloped ("flat") roofs with insulation above the roof deck that resist wind pressures during high-wind events.

Guide describing steps to take to minimize indoor humidity in preparation for cold winter weather.

Guide describing requirements for sheathing and sealing the roof decking in accordance with the requirements of the IBHS Fortified Home Program's Hurricane and High Wind Standards, and other roofing considerations to increase the roof's disaster resistance.

Guide describing how to apply heavy membranes at eaves in cold climates to help guard against ice dams.

Guide describing designs and construction retrofits for roof assemblies to resist pressures at roof edges during high-wind events.

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

Guide describing a method for insulating an unvented attic by spraying foam insulation along the underside of the roof deck.

Guide describing construction of sloped roofs that are unvented and are insulated above the roof deck.