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 strong continuous load path from the roof through the wall to the foundation to ensure a structurally sound building and increase racking resistance in hurricanes, high winds, tornados, and earthquakes.
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.