Insulating and Air Sealing Existing Floors above Unconditioned Spaces Description Guide describing how to insulate a floor over unconditioned space with conditioned space above by adding insulation and air-sealing.
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.
Batt Insulation for Existing Exterior Walls Description Guide describing how to achieve RESNET Grade 1 installation standards, and meet/exceed code using batt insulation in existing walls.