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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.

Reexamining Roof Ventilation

Author(s)

Woods Tony

Organization(s)

Home Energy,

National Association for State Community Services Programs,

NASCSP

Publication Date

November, 2000

Article describing moisture and ice dam issues in attics and how to air seal the attic floor.

Unvented Attic Insulation

Guide describing methods for insulating an unvented attic along the roof line.

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.

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.

Attic Eave Minimum Insulation

Guide providing guidance on insulating attic eaves in new and existing single-family homes and multifamily buildings.

Construct Roofs and Attics for Ice Dam Prevention

Guide describing how ice dams form and how roofs can be constructed to prevent them.

Unvented Conditioned Attic with Spray Foam Insulation Below Roof Deck

Guide describing a method for insulating an unvented attic by spraying foam insulation along the underside of the roof deck.

Below Deck Spray Foam Insulation for Existing Roofs

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.

Roof Venting in a Wet Climate

Author(s)

Fisette Paul

Organization(s)

Journal of Light Construction,

JLC

Publication Date

February, 2011

Q&A article discussing how to address moisture issues in an attic in a wet and humid coastal climate.

Avoiding Moisture Problems

Author(s)

Van der Meer Bill

Organization(s)

National Association for State Community Services Programs,

NASCSP,

Weatherization Training Center at Penn College,

Pennsylvania College of Technology,

PCT

Publication Date

February, 2003

Technical article describing issues and moisture concerns related to weatherization efforts.

Water Managed Roof – Re-roofing and Adding Insulation Over a Sloped Roof

Guide describing how to re-roof an existing home with a sloped and add insulation above the roof deck.

Roof Eaves Sealed with Self-Adhering Membrane in Cold Climates

Guide describing how to apply heavy membranes at eaves in cold climates to help guard against ice dams.