Roofs, Attics & Ceilings -

Air Sealing/Insulation

Guide describing how to add spray foam insulation to the underside of the existing roof deck as part of the conversion of a vented attic to an unvented, insulated attic.

Guide describing how to provide a continuous water control layer across the roof assembly by sealing all penetrations for pipes, vents, etc. in existing roofs.

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

Guide describing how to seal roof valleys and how to seal around pipes, chimneys, and other roof deck penetrations.

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.