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Recommended for fully adhered roof systems
- Coated facer improves adhesive bond.
- Ideal coverboard or thermal barrier.
DEXcell FA® Glass Mat Roof Board has heavy-duty coated fiberglass facers and an enhanced mold-resistant gypsum core. This moisture- and mold-resistant gypsum panel is a substrate board, thermal barrier and/or coverboard for commercial roofing applications. It scores and cuts easily, and is specially coated on the front, back and sides for easy handling.
Use it for a wide variety of roofing systems, including fully adhered, mechanically attached and ballasted roofs using single-ply membranes, modified bitumen, fluid applied, built-up roofing, spray foam and metal.
DEXcell FA Glass Mat Roof Board is one of four products offered by DEXcell Roof Boards.
Applications
- Use DEXcell FA Glass Mat Roof Board as a substrate board and for thermal protection in roofing assemblies. It provides increased fire safety and acoustical enhancement. It also serves as a substrate for a vapor retarder and/or continuous substrate for the application of roofing membranes. This board provides increased moisture and mold resistance.
- Use it as an insulation coverboard in roofing assemblies. DEXcell FA Glass Mat Roof Board protects and supports the roof membrane; provides increased fire, moisture and mold resistance; and reduces the potential for penetration damage to the membrane.
- Use it to sheathe the roof side of parapet and penthouse walls.
Advantages
- Scores and snaps easily.
- Fiberglass mat on face and back has a special coating for easy handling.
- Meets ASTM C1177.
- Meets FM Class 1 and UL Class A fire ratings for roofing systems up to unlimited slope per UL 790/ULC S107.
- Approved component in specific UL fire-rated designs.
- Use it as part of a class A, B or C roof covering that has been tested in accordance with UL 1256, ULC CAN-S126 or FM 4450. No additional thermal barrier is required as per IBC 2603.
- Resists the growth of mold per ASTM D3273 with a score of 10, the best possible score.
- Eliminates the need for a field-applied primer for many fully adhered roofing membrane applications. Please see system manufacturers’ application recommendations.
- High-density coverboard/thermal barrier.
- 5/8 inch (15.9 mm) DEXcell FA® Glass Mat Roof Board is UL Classified for use in numerous hourly rated UL assemblies, including UL "P" roof assemblies; refer to UL Certifications Directory: ul.com. Meets Type X per ASTM C1177.
Specifications
Products that suit any project criteria
Product Details
Performance:
Roofing
Edge(s):
Square
Thickness(es):
1/4", 1/2", 5/8"
Width(s):
48"
Related Resources
Product details and technical documentation
Tips & Tools
Detailed information to support your next project
Compare Products
![](https://d3q01gc7kwv7n6.cloudfront.net/images/sites/products/DC_FAGMRB_Cutaway_500x420.jpg)
Roofing
DEXcell FA® Glass Mat Roof Board
Product Type
- Roofing
Product Family
DEXcell
Application
- Roofing Systems
- Exterior Envelope
Sustainability
HPD - Health Product Declaration
Description
This moisture- and mold-resistant gypsum panel is a substrate board, thermal barrier and/or coverboard for commercial roofing applications.
![](https://d3q01gc7kwv7n6.cloudfront.net/images/sites/products/DEXCELL_FA_VSH_GLASS_MAT_ROOF_BOARD_CUTAWAY.png)
Roofing
DEXcell FA VSH® Glass Mat Roof Board
Product Type
- Roofing
Product Family
DEXcell
Application
- Roofing Systems
- Exterior Envelope
Sustainability
HPD - Health Product Declaration
Description
Extremely durable and approved for use in single ply and multi-ply assemblies meeting FM Very Severe Hail (VSH) classification.
![](https://d3q01gc7kwv7n6.cloudfront.net/images/sites/products/DC_GMRB_Cutaway_500x420.jpg)
Roofing
DEXcell® Glass Mat Roof Board
Product Type
- Roofing
Product Family
DEXcell
Application
- Roofing Systems
- Exterior Envelope
- Multifamily
Sustainability
GREENGUARD Certified, HPD - Health Product Declaration
Description
This moisture- and mold-resistant gypsum panel is a substrate board, thermal barrier and/or coverboard for commercial roofing applications.
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