Image Rigid foam insulation can serve as the drainage plane when all seams are taped. Furring strips provide an air gap behind the cladding. Publication Date Sun, 04/01/2012 - 12:00
Below Deck Spray Foam Insulation for Existing Roofs Description 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.
