Self-adhering ice and water barrier used as a leak-protection underlayment beneath shingles, metal and other steep-slope roof coverings. The sheet is a rubberized asphalt membrane laminated to a slip-resistant top surface, with a release liner on the adhesive face that is peeled back as the roll is set into place.

Because the adhesive bonds directly to the deck and seals around driven fasteners, the membrane keeps water that backs up behind an ice dam or is driven by wind from reaching the sheathing. It is normally applied at the eaves, in valleys and around penetrations first, with the remaining field of the roof covered by conventional felt or synthetic underlayment.

Supplied as a single roll covering 200 square feet of deck before laps.

Key Features

• Self-adhered rubberized asphalt membrane that bonds to the roof deck without fasteners or torching
• Seals around nails and staples driven through it, resisting water entry at fastener penetrations
• Split or full release liner peels away for controlled positioning during application
• Skid-resistant top surface for footing during installation
• Laps to itself at side and end seams to form a continuous watertight layer
• Roll covers 200 square feet of deck area
• Compatible with asphalt shingle, metal and other steep-slope roof coverings

Applications

• Eave and gutter-line protection against ice dam backup
• Open and closed roof valleys
• Around chimneys, skylights, vents and other roof penetrations
• Rakes, ridges and hips on steep-slope roofs
• Low-slope roof sections and porch or dormer tie-ins
• Wall-to-roof transitions and step flashing areas
• Full-deck coverage on re-roofs in severe weather exposures

Product Details

• Type: Self-adhered ice and water barrier underlayment
• Material: Rubberized asphalt membrane with release liner
• Coverage: 200 sq. ft. per roll
• Application: Steep-slope roof decks, under shingles and metal roofing
• Unit: Roll

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