Air Sealing and Insulating Ceilings Description Guide describing how to air seal and insulate a ceiling.
Air Sealing Attic Access Panels/Doors/Stairs Description Guide describing how to air seal attic access panels, doors, and stairs to provide a continuous air barrier at the ceiling.
Air Sealing Bathroom and Kitchen Exhaust Fans Description Guide describing how to air seal bathroom and kitchen exhaust fans.
Air Sealing Drywall to Top Plate Description Guide describing ways to seal drywall to the top plate of an exterior wall to air seal the wall cavity.
Attic Eave Minimum Insulation Description Guide providing information about constructing a roof with full insulation at the eaves, and insulating eaves in existing homes.
Attic Knee Walls Description This guides describes how to insulate and air seal attic knee walls and floor joist cavities under knee walls.
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.
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.
Blown Insulation for Existing Vented Attic Description Guide describing how to insulate a vented attic in an existing home using blown insulation added to the attic floor.
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.
Ducts in Raised Ceiling Sections Description Guide describing method for designing and installing ducts in a raised ceiling chase.
Install Top Plates or Blocking at the Top of Walls Adjoining Unconditioned Spaces Description Guide describing how to correctly air seal a wall with missing top plates or open wall cavities.
Insulation Below Attic Platforms Description Guide describing how to install insulation below attic platforms
Spray Foam Insulation Applied to Existing Attic Floor Description Guide describing how to apply spray foam insulation to ceilings in existing homes.
Unvented Attic Insulation Description Guide describing methods for insulating an unvented attic along the roof line.
Vented versus Unvented Attic Description Guide describing options for designing and locating the thermal boundary at either the attic floor or along the roof line in new and existing homes.
Whole House Ventilation Strategies for Existing Homes Description Guide describing how to select and install whole-house ventilation systems for existing homes.