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Very severe hail protection
Introducing DEXcell FA VSH™ Glass Mat Roof Board, the new solution for buildings prone to very severe hail (VSH) damage.
Four great products. Many great benefits.
DEXcell® Roof Board products cover the entire spectrum of commercial roofing applications. Whether your building shelters expensive equipment or valued people, DEXcell® Roof Boards will cover more than your roof.

Look closer at the best roof board products
Delta Innovative Services
Delta Innovative Services trusts DEXcell® for their roofing needs. Commissioned to refurbish the Kansas City Water Utilities rooftop, Delta tore off three different roofing systems across two buildings and 60,000-square feet of space before laying down DEXcell FA™ Glass Mat Roof Board.
A board you'll want to adhere to
With four great products to choose from, there is one that works for every commercial roofing application. Our entire line also helps reduce sound transmission through a broad range of roof assemblies.
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Design & Resource Center
Find product details and technical documentation in the Design & Resource Center.
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National Gypsum Company is the exclusive service provider for products manufactured by Gold Bond Building Products, LLC, PermaBASE Building Products, LLC and ProForm Finishing Products, LLC