POWERply® HE Base Sheet:

POWERply® HE Base Sheet

A Smooth Surfaced, High Elongation Polyester Reinforced Modified Bitumen Base Sheet

The POWERply HE Base Sheet is designed for applications in modified bitumen roofing and flashing systems where a polyester reinforced membrane is desired.  This product is strong yet very pliable to resist tears and splits.


The asbestos-free POWERply HE BASE Sheet is a smooth surfaced, high elongation, modified bitumen base sheet.  It consists of specially selected bitumens, modified with compatible SBS elastomers and reinforced with a non-woven polyester mat.  POWERply HE Base Sheet exceeds the requirements of ASTM D 6164, Type I, Grade S.

Roofing & Weatherproofing Peace of Mind

We deliver peace of mind to building owners and facility managers by managing roofing and building life cycles for customers in all industries, including education, healthcare, government, manufacturing and more.

  • Tremco Roofing offers the industry's most comprehensive roofing and weatherproofing solutions for restoration, repair, maintenance, replacement and new construction.
  • WTI (Weatherproofing Technologies, Inc., a subsidiary of Tremco Incorporated), provides roofing services, construction management and general contracting.
  • Our Canam Building Envelope Specialists affiliate provides building envelope solutions to eliminate air leaks, improve energy efficiency and reduce costs.


US: 1.800.852.6013

Canada: 1.800.668.9879

Email: info@TremcoRoofing.com