Ceilings | Building America Solution Center

Air Sealing and Insulating Ceilings

Guide describing how to air seal and insulate a ceiling.

Air Sealing Attached Garage

Guide describing ways to air seal an attached garage in new and existing homes.

Air Sealing Attic Access Panels/Doors/Stairs

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

Guide describing how to air seal bathroom and kitchen exhaust fans.

Air Sealing Drywall to Top Plate

Guide describing ways to seal drywall to the top plate of an exterior wall to air seal the wall cavity.

Air Sealing Duct and Flue Shafts

Guide describing how to air seal duct and flue shafts.

Air Sealing Recessed Light Fixtures Below Unconditioned Space

Guide describing how to air seal around recessed light fixtures.

Air Sealing, Insulating, and Venting Attics and Roofs to Reduce Heat Gain

Information guide providing links to guides describing specific ways to air seal, insulate, and ventilate attics and roofs to minimize heat gain in new and existing homes.

Attic Air Sealing, Insulating, and Ventilating for Ice Dam Prevention

Information guide describing proper attic air sealing, insulation, and ventilation to combat ice dam formation on roofs in cold climate zones.

Attic Eave Minimum Insulation

Guide providing information about constructing a roof with full insulation at the eaves, and insulating eaves in existing homes.

Attic Knee Walls

This guides describes how to insulate and air seal attic knee walls and floor joist cavities under knee walls.

Attic Radiant Barriers

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

Guide describing how to increase insulation in existing homes by installing batt insulation on the ceiling plane of a vented attic.

Blown Insulation for Existing Vented Attic

Guide describing how to insulate a vented attic in an existing home using blown insulation added to the attic floor.

Calculating Attic Passive Ventilation

Information guide describing how to calculate attic passive ventilation with example calculations.

Dropped Ceiling/Soffit Below Unconditioned Attic

Guide describing how to insulate and air seal dropped ceilings and soffits to prevent air leakage.

Ducts in Dropped Ceilings

Guide describing method for installing ducts in a duct chase above a dropped ceiling.

Ducts in Raised Ceiling Sections

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

Guide describing how to correctly air seal a wall with missing top plates or open wall cavities.

Insulating and Air Sealing Existing Non-ICAT Recessed Lights

Guide describing air sealing of non-ICAT recessed lights installed in accessible attics of existing homes.

Roofs, Attics & Ceilings -
Ceilings

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