All underlayments are manufactured with ADESO® technology, incorporating an APP compound on top and self-adhesive compound on the bottom. The underlayment we use offers advantageous characteristics including split release backing film for easy positioning of sheets, and allows for steep roofing to be easier, cleaner, faster, and more reliable than ever.

Kelly Roofing uses a fully self-adhered modified underlayment directly to the entire deck as a "code-plus" designed roof system component, which will qualify for substantial insurance reductions and act as a secondary water barrier in case of main roof system blow-off and/or damage.

• Homogeneous rubberized asphalt waterproofing compound in combination with non-wicking fabric reinforced glass fiber mat.
• Can be exposed to the elements for up to 90 days before roofing system application.
• Withstands temperatures up to 260° F.
• Meets and exceeds the standards for ASTM D1970.
• Can be installed directly onto the substrate.
• Works well on slopes 3:12 or higher.

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