Tremco/USG Securock®:

Tremco/USG Securock®

A Fiber Reinforced, Moisture Resistant Gypsum Roof Board

Tremco/USG Securock® is used as a non-structural roof board in a variety of low slope roof system configurations. Securock is recommended as an overlayment (cover) board in cold process and hot applied BUR and MB roof systems. Securock is also a substrate for Tremco single ply roof systems. Securock may be applied directly to structural roof decks such as steel and wood to improve the application or fire resistance of the roofing assembly. Securock is also recommended as a substrate for vapor retarder systems.


Tremco/USG Securock consists of a fiber reinforced, moisture resistant gypsum blend that is homogenous from surface to core. The panel surfacing is compressed to provide a low dusting surface, with moisture resistance provided through the use of a silicone based additive. Securock contains 97% recycled material and meets ASTM D1278 / C1278M, the Standard Specification for Fiber-Reinforced Gypsum Panel.

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