Flashing of Penetrations in Existing Roofs Description 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.
Managing Indoor Humidity and Ventilation in Cold Weather Description Guide describing steps to take to minimize indoor humidity in preparation for cold winter weather.
Unvented Insulated Sloped Roofs Description Guide describing construction of sloped roofs that are unvented and are insulated above the roof deck.