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

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.

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

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

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