Change your country/region

It looks like you entered an employee email address, but this is the customer sign-in. Use the link below instead.

Securock® Brand UltraLight Glass-Mat Roof Board

High-performance UltraLight roof boards for mechanically attached systems that are resistant to fire, mold and mildew. Easy to cut, handle and install.



Easy to cut, handle and install, high-performance glass-mat roof boards that are resistant to fire, mold and mildew.
Securock® Brand UltraLight Glass-Mat Roof Board is a high-performance roof board for use in low-slope commercial roofing systems. The specially treated core and high-performance glass-mat facer provide protection against fire, mold and moisture, while high-quality mat produces less itchiness than competitive products. Securock® Brand UltraLight Glass-Mat Roof Board scores and snaps cleanly and easily, making installation a breeze.

Main Features

Enhance the durability of the entire roofing system by using cover board in single-ply mechanically attached systems.
  • Ideal for use as cover board in single-ply mechanically attached systems
  • Lightweight core; up to 18% lighter than competitive products*
  • Moisture and mold resistant core and facer
  • Provides protection to roof system from hail and foot traffic
  • Fire resistant for use as fire barrier and thermal barrier
  • Unmatched mat-to-core tensile bond strength makes facer less likely to delaminate when cutting
  • High-quality tight mat makes for easier handling and cutting
*Lightweight applies to 1/2" and 5/8" thickness only.


  • Bars Restaurants and Dining Areas
  • Department Stores and Boutiques
  • Grocery Stores
  • Health and Fitness
  • Multi-Family Residential and Condos
  • Warehouses

Documents & Files

Data Sheets & Specifications

Data/Submittal Sheet (English) PDF 977.2 KB
Architectural Specification (English) PDF 182.9 KB

White Papers

White Paper (English) PDF 456.3 KB

Catalogs & Brochures

Brochure (English) PDF 37.0 MB

Project Profiles

Project Profiles (English) PDF 1.4 MB

Installation & Technical Manuals

Technical Guide (English)
Installation Guide (English) PDF 753.1 KB

SDS, Certifications & Reports

SDS (English) PDF 124.9 KB


Warranties (English) PDF 168.9 KB

Ask a question

Our customer support team will get back to you as soon as possible.

Question Guidlines

  • Questions should relate to this product specifically.
  • For help with pricing, availability, or delivery, please call 800.874.4968 (Monday–Friday, 7am–6pm Central)
  • All questions and answers follow USG’s Terms & Conditions.
  • Your question and USG’s answer may be posted to this page in the future, but none of your personal info will be included.

 Thanks for your message. We’ll be in touch!

q & a

  • Be the first to ask a question

    Let us do the research. We’ll get back to you as quickly as we can.

    Ask USG
  • Need help right away?

    Call our technical support team at 800.USG.4YOU (874.4968)