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.
Water Managed Roof – Re-roofing and Adding Insulation over a Flat Roof Description Guide describing an approach to re-roofing an existing flat roof to improve thermal, water, and air control performance.
Water Managed Roof – Re-roofing and Adding Insulation Over a Sloped Roof Description Guide describing how to re-roof an existing home with a sloped and add insulation above the roof deck.