Batt Insulation for Existing Vented Attics Description Guide describing how to increase insulation in existing homes by installing batt insulation on the ceiling plane of a vented attic.
Unvented Conditioned Attic with Spray Foam Insulation Below Roof Deck Description Guide describing a method for insulating an unvented attic by spraying foam insulation along the underside of the roof deck.
Vinyl Siding with Integrated Rigid Foam for Existing Walls Description Guide describing the design and installation considerations for recladding of above grade walls using insulated vinyl siding.