UltraSeal-SA-HT™ is high temperature performance, strongest, most reliable and best performing synthetic self-adhering roof underlayment.

UltraSeal-SA-HT™ delivers a unique combination of both high temperature (260°F / 126°C) flow resistance and low temperature (34°F / 1°C) deck adhesion, does not require priming at low temperature and remains stable at extreme temperatures. It meets or exceeds code requirements and industry standards, offers best walkable rough blue woven fabric surface with Nine months UV exposure rating and 30 years limited warranty which makes UltraSeal-SA-HT™ an ideal self-adhering underlayment for commercial and residential projects subject to ice-damming and severe weather.

Air, Water & Vapor Barrier

Ice Damming and Severe Weather protection at High and Low temperature

For Use Under: Metal, Tile, Shake, Slate, Composition and Asphalt Shingles

Information Sheets


  • UltraSeal-SA-HT™ is premium self-adhered underlayment that creates a continuous watering shedding surface without nailing

  • Strong with resistant to tearing and stretching will not delaminate

  • Meets and exceeds ASTM D-1970, ASTM D226

  • 30 Year Limited Warranty

  • Skid-resistant Synthetic Grip Texture that provides traction and a safer working surface

  • High and Low Temperature Performance (260°F / 126°C)

  • Installation Temperature  34°F / 1°C and above

  • Low temperature flexibility

  • UltraSeal-SA-HT™ is a synthetic product that will support no-mold

  • Enhanced UV Resistant (up to 9 months)

  • Better Coverage - 2 Sq. Roll

  • Class A Fire ASTM E108, Under Asphalt Shingles

  • Extra Wide 42 inches - Offers Fast installation

Building Code and Roofing Standard Compliance:

ASTM D-1970
ASTM D226 D4869
CAN/CSA - A123.3
CAN/CSA - A220.1

Roll Specifications

2 Square Roll

3.5 ft x 58 ft

42 lbs/Roll

25 Rolls Per Pallet

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