POWERply® APP Base Sheet:

POWERply® APP Base Sheet

A Fiberglass Reinforced APP Modified Bitumen Base Sheet

The POWERply APP Base Sheet is designed for use in multi-ply cold-applied and hot-applied applications where a fiberglass reinforced base sheet is desired; it may also be used as a backing sheet in flashing installations.


The asbestos-free POWERply APP Base Sheet is an APP modified bitumen base sheet.  It is composed of specially selected asphalt, modified with a blend of APP polymers, and reinforced with a tough fiberglass mat.  The top and bottom of the sheet is surfaced with a light layer of sand. POWERply APP Base Sheet exceeds the performance requirements of ASTM D 6509-00.

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