Attic Eave Minimum Insulation Description Guide providing guidance on insulating attic eaves in new and existing single-family homes and multifamily buildings.
Attic Radiant Barriers Description Guide describing application of a radiant barrier layer in the attic to block radiant heat transfer between hot surfaces and heat-absorbing surfaces.
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.
Calculating Attic Passive Ventilation Description Information guide describing how to calculate attic passive ventilation with example calculations.
Dropped Ceiling/Soffit Below Unconditioned Attic Description Guide describing how to insulate and air-seal dropped ceilings and soffits to prevent air leakage.
Pre-Retrofit Assessment of Attics, Ceilings, and Roofs Description Information guide describing things to consider in the attic, ceiling, or roof before attempting retrofits of items including HVAC, wiring, or structural systems.