Skip to content
Carlisle USG SECUROCK Glass-Mat Roof Board 4 ft x 8 ft, Multiple Thicknesses
Regular price $27.75Orders start at $399 — combine any items to reach the minimum. Learn more
Carlisle USG SECUROCK Glass-Mat Roof Board 4 ft x 8 ft, Multiple Thicknesses
Carlisle USG SECUROCK glass-mat roof board is a high-performance cover board for mechanically attached low-slope roofing systems. Each board measures 4 ft x 8 ft and is available in 1/4 in., 1/2 in. or 5/8 in. thicknesses with an off-white finish. Pair it under single-ply membranes as a cover board, fire barrier or thermal barrier.
Key Features:
- Moisture and mold resistant: Specially treated core and high-performance glass-mat facer resist moisture and mold.
- Fire resistant: Fire-resistant construction makes the board suitable for use as a fire barrier and thermal barrier.
- Foot traffic protection: Provides protection from excessive foot traffic on the roof assembly.
- Easy handling: The high-quality glass-mat facer makes the board easier to handle and cut.
- Low-slope ready: Designed for use in mechanically attached low-slope roofing systems.
- Three thicknesses: Offered in 1/4 in., 1/2 in. and 5/8 in. thicknesses in 4 ft x 8 ft panels.
Specifications Table:
| Specification | Details |
|---|---|
| Brand | Carlisle |
| Sell unit | 1 piece, 4 ft x 8 ft board in selected thickness |
| Product line | SECUROCK Glass-Mat Roof Board |
| Available sizes | 1/4 in. x 4 ft x 8 ft; 1/2 in. x 4 ft x 8 ft; 5/8 in. x 4 ft x 8 ft |
| Dimensions | 4 ft x 8 ft panel |
| Material | Treated gypsum core with glass-mat facer |
| Color / finish | Off White |
| Thickness | 1/4 in., 1/2 in. or 5/8 in. depending on variant |
| Intended use | Cover board, fire barrier and thermal barrier in mechanically attached low-slope roofing systems |
Coverage & How Much You Need:
Each panel covers 32 sq ft (4 ft x 8 ft). Divide the roof area by 32 to estimate the number of boards needed, allowing for cuts and waste.
Fit and Compatibility:
Intended for mechanically attached low-slope roofing systems, where it installs over insulation or deck as a cover board, fire barrier or thermal barrier beneath the membrane. Membrane, insulation and fasteners are sold separately.
Frequently Asked Questions (FAQ):
Q: What is included in one order?
A: One 4 ft x 8 ft SECUROCK glass-mat roof board in the selected thickness (1/4 in., 1/2 in. or 5/8 in.).
Q: How many boards do I need?
A: Each board covers 32 sq ft, so divide your roof area by 32 and add an allowance for cuts and fitting.
Q: Is the board moisture resistant?
A: Yes, both the treated core and the glass-mat facer are moisture and mold resistant.
Q: Can it be used as a fire barrier?
A: The manufacturer describes the board as fire-resistant and suitable for use as a fire barrier and thermal barrier; confirm your assembly's requirements before installation.
Q: How does it install?
A: It is designed for mechanically attached low-slope roofing systems, with the membrane attached over the board; fasteners and membranes are sold separately.
Expert Verdict — Reviewed by the SuperArbor Pro Desk
Choose 1/2 in. or 5/8 in. where greater durability or thermal barrier performance is specified, and 1/4 in. where a thin separator over insulation is all you need. The glass-mat facer stands up to job-site moisture better than paper-faced board, and the treated core cuts cleanly. Install boards with staggered joints and fasten per the roofing system specification before laying the membrane.
Wear cut-resistant gloves, eye protection and a dust mask when cutting gypsum roof board, and follow the roofing system manufacturer's fastening pattern and local building codes.
Order Carlisle USG SECUROCK glass-mat roof board today in the thickness your roofing system calls for.
All third party trademarks, including logos and icons, referenced on our website and product pages remain the property of their respective owners. Unless specifically identified as such, Arbor's use of third party trademarks does not indicate any relationship, affiliation, sponsorship, or endorsement between Arbor Home and the owners of these trademarks. Any references by Arbor Home to third party trademarks are to identify the corresponding third party goods.
