Summit® Synthetic Underlayment

Summit® is a lightweight synthetic roof underlayment designed as an alternative to #15 asphalt-saturated felt. It features a woven polymeric scrim for increased strength and reduced slippage between underlayment and the roof sheathing. A textured top surface fabric improves walkability during installation. Summit® can be mechanically fastened to various substrates, making it an excellent underlayment for new and re-roofing applications.

Summit® is offered in 10-square rolls, providing more coverage per roll than traditional felt. It is manufactured with pre-printed lay lines for easy installation and offers 180-day resistance to UV breakdown.

FEATURES:

• 180-day exposure to UV
• Slip-resistant polymer applied to the bottom surface
• Non-woven top surface for improved walkability
• Will not support mold growth or rot
• Won’t buckle, warp, or crack
• Water resistant
• Temperature performance -40°F to 240°F

CODES & COMPLIANCES:

• ASTM 8257, Mechanically Attached Polymeric Roof Underlayment Used in Steep Slope Roofing
• AC 207, UV Exposure for 180 Days
• AC 207, Accelerated Aging
• ASTM E108, Fire Resistance
• ASTM D6757, Inorganic Shingle Underlayment Standard
• UL Classified as a Prepared Roofing Accessory
• Florida Building Code Approved
• Miami-Dade County Product Control Approved

Summit® is designed to enhance the life of the roof and qualifies as an Atlas Signature Select® System Component.

Summit® Synthetic Underlayment