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DEXcell® Cement Roof Board

National Gypsum Company

07 50 00 Membrane Roofing

DEXcell® Cement Roof Board is engineered for roofing applications that demand exceptional moisture resistance, dimensional stability and long-term durability. Manufactured with a cementitious core reinforced with glass mesh, it provides a hard, impact-resistant surface suited for extreme environments, high-humidity buildings and demanding roof assemblies.

Key performance features include:

  • Portland cement–based core for superior moisture and freeze/thaw resistance.

  • Reinforced glass mesh for strength, durability and resistance to impact damage.

  • High bond and pull-through performance, supporting secure membrane attachment.

DEXcell® Cement Roof Board functions as a cover board and substrate board, helping protect insulation and roofing membranes while enhancing overall system durability. Its rigid construction makes it especially well-suited for applications exposed to harsh weather and high foot traffic, reducing the potential for penetration damage to the membrane.



Additional Information

DEXcell® Cement Roof Board
DEXcell Roof Board Technical Guide
Six Key Standards for Low-Slope Commercial Roofing
Video: Versatility of DEXcell Roof Coverboard
How To Enhance Roof Assembly Thermal Performance


Contact Information

Phone: 844-339-2355


Other Products By This Company

DEXcell FA VSH® Glass Mat Roof Board

DEXcell FA® Glass Mat Roof Board

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