Roof Cover Boards | USG

USG develops innovative building and manufacturing solutions, enabling global customers to efficiently and affordably create sustainable and accessible spaces. USG line of Roof Boards provide durable, high-performance solutions for various roofing applications, offering exceptional fire, wind-uplift, and moisture resistance across different system requirements.

Securock® Brand Cement Roof Board

This lightweight cement board enhances roofing systems, serving as a cover, fire, and thermal barrier, as well as a parapet wall board. It is noncombustible and suited for use with various membranes, including liquid-applied and cold-mastic-modified bitumen systems.

Characteristics

• Lightest cement board in the industry, easy to handle and install
• Water-, mold-, and rot-resistant; optimal for high-moisture areas
• Noncombustible
• Environmentally sustainable, with reduced embodied energy
• Thickness:5/8
• Panel Size: 4 ft. x 4-8 ft.
  
  Securock® Brand Gypsum-Fiber Roof Board

Featuring a unique, fiber-reinforced composition, this gypsum board offers strength and water resistance, making it ideal for adhered systems. Suitable for single-ply, fluid-applied, spray foam, metal, and modified bitumen roofing.

Characteristics

• Fiber-reinforced core provides durability and excellent wind-uplift performance
• Low surface absorption for secure bonding in adhered systems
• Mold and moisture-resistant
• Manufactured with 97% recycled content
• Panel Size: 4 ft. x 4-8 ft.
• Thickness: 5/8"

Securock® Brand UltraLight Coated Glass-Mat Roof Board

This lightweight, high-performance glass-mat roof board is up to 18% lighter than comparable products, featuring a coated mat for enhanced bond and low absorption in adhered systems. Designed for commercial low-slope roofing, it is easy to handle and install.

Characteristics

• Lightweight core for easier handling (applies to 1/2" and 5/8" thickness)
• Fire, moisture, and mold-resistant core and facer
• High bond strength for cold-applied adhesives
• Durability against hail and foot traffic

Securock® Brand UltraLight Glass-Mat Roof Board

This high-performance glass-mat roof board offers fire, mold, and moisture resistance, with a lightweight core that simplifies handling and installation. Ideal for single-ply mechanically attached systems in low-slope commercial roofing.

Characteristics

• Lightweight, up to 18% lighter than competitive products (1/2" and 5/8" thickness)
• Fire-resistant for use as a fire and thermal barrier
• High tensile bond strength, reducing the risk of facer delamination
• High-quality mat for easier scoring and snapping