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SECUROCK Roof Boards from USG Corp.


Less Itch with USG’s High-Quality Glass-Mat Means Easier to Install

SECUROCK Glass-Mat Roof Board is a high-performance, non-combustible, moisture and mold-resistant roof board and provides a better choice for mechanically attached, fire barrier and thermal barrier applications.

“Regardless of the roofing system, there’s a USG high-performance roof board that meets a project’s needs,” said Rich Willett, USG product manager.  “Our newest product, SECUROCK Glass-Mat roof board, not only matches the stringent performance requirements and specifications of ASTM C1177, but it also comes with the service and quality professionals expect from USG.  Plus, it’s easier to handle and install than the competitor’s board."

SECUROCK Glass-Mat roof board has a high quality glass-mat, making it less itchy and easier to work with, which helps boost contractor productivity. The high mat-to-core tensile bond strength also makes the mat less likely to delaminate when cutting.  It scores and snaps cleanly and easily.

SECUROCK Glass-Mat roof board is ideal for use in low-slope commercial roofing sys­tems. Building professionals can enhance the durability of the entire roofing system when they use the glass-mat roof board as a cover board in single-ply mechani­cally attached systems.  SECUROCK Glass-Mat roof board provides outstanding fire performance and meets Factory Mutual (FM) Class 1 and Underwriters Laboratories (UL) Class A fire ratings for unlimited slope in fire barrier applications per UL 790.   With its specially treated core and high-performance glass-mat facer, the product provides protection against mold and moisture and scores a 10, the highest score for mold resistance on ASTM D3273.  

SECUROCK Glass-Mat roof board comes in 4' x 8' boards available in 1/4", 1/2" and 5/8" thicknesses. 


SECUROCK® Gypsum-Fiber roof board (formerly SECUROCK® roof board), combines superior performance with sustainable design.  Made from 95 percent recycled materials, SECUROCK Gypsum-Fiber roof board uses advanced fiber-reinforced technology to give the panel strength that outperforms competitive roof boards.  The product is water resistant through to the core and also scores a 10 on ASTM D3273 for mold resistance.

SECUROCK Gypsum-Fiber roof board is a uniform, durable and fire-resistant product ideal for use in all types of adhered low-slope roofing systems.  These include single-ply, fluid-applied, built-up, spray foam and modified bitumen roofing.

USG manufactures the gypsum-fiber roof board with a combination of synthetic gypsum and cellulose fibers. Synthetic gypsum is an environmentally-friendly byproduct from electrical plants and is indistinguishable from natural mined gypsum rock in performance and quality.  SECUROCK Gypsum-Fiber roof board’s high recycled content has earned a Green Cross certification from Scientific Certification Systems and can help contribute points towards a LEED project certification.

“Whether a roofing project is a fully-adhered or mechanically attached application, building professionals now have options when choosing the roof board for the job,” said USG’s Willett.  “USG is committed to the roofing industry and providing our customers with high-performance product solutions.”

SECUROCK gypsum-fiber roof board is available in 4' x 4' and 4' x 8' boards in 1/4", 3/8", 1/2", and 5/8" thicknesses.

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