e DEXcell® brand Technical Guide
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DEXcell® brand 7Tfr DEXcell® FA Glass Mat Roof Boards DEXcell® Glass Mat Roof Boards DEXcell® Cement Roof Boards

Helping You Build Better With High-Quality Products And Resources Founded in 1925, National Gypsum is one of the world’s largest producers of quality building products. For nearly a century, customers like you have looked to us for the best products, service and technical support. With a focus on sustainability, we strive to bring you the finest in construction products, education and resources to meet and exceed your expectations. With Technical Support You Can Count On Great products are nothing without great customer service. For detailed technical information about product applications,...

Look Closer At The Best Roof Board Products Meet Our DEXcell® Family . . 4 DEXcell® Glass Mat Roof Board . . . . . . . . . . . . . . 6 DEXcell® FA Glass Mat Roof Board . . . . . . . . . . . . . . 9 DEXcell® Cement Roof Board . . . . . . . . . . . . . 12 Technical Information . . . . 15 Fastener Patterns . . . . . . . . 17 System Applications . . . . . . 20 Acoustics . . . . . . . . . . . . . . . . 22 Warranty . . . . . . . Back Cover With Design That Considers The Environment Together, we can attain the highest level of ecological responsibility and resource-efficient technology. National...

For Every Application Need roof board options and technical expertise? We've got you covered. Three Outstanding Products The National Gypsum line of DEXcell® brand Roof Board covers the entire spectrum of commercial roofing applications. When a building houses expensive equipment or expensive people, DEXcell® Roof Boards will cover more than your roof. ■ First, our DEXcell® brand Glass Mat Roof Board is recommended for mechanically attached systems, metal roof systems and wood shake underlayment. It's also an excellent thermal and fire barrier. ■ Next, our DEXcell® brand FA Glass Mat Roof...

DEXcell® Glass Mat DEXcell® FA Glass Mat DEXcell® CementApplication Roof Board Roof Board Roof Board © Recommended Acceptable Not Recommended* ‘indicates product applications that may be used successfully, but may not be optimal in terms of cost or performance as compared to the recommended product. Note: In situations where prolonged excessive membrane surface temperatures may be experienced, such as dark-colored membranes in Southern climates, roof surfaces that experience reflected sunlight or photovoltaic installations, DEXcell® Cement Roof Board is the preferred DEXcell® product. Fire...

DEXcell® brand Glass Mat Roof Board A Board You’ll Get Attached To DEXcell® brand Glass Mat Roof Board has coated fiberglass facers and an enhanced mold-resistant gypsum core. This mold- and moisture-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 mechanically attached and ballasted single-ply membranes, thermal barriers and metal roofing. Sizes: 1/4 in. (6.4 mm), 1/2 in....

Technical Data PHYSICAL PROPERTIES 1/4" DEXcell® 1/2" DEXcell® 5/8" DEXcell® Glass Mat Glass Mat Glass Mat Thickness1, Nominal 1/4" (6.4 mm) 1/2" (12.7 mm) 5/8" (15.9 mm) Width1, Nominal 4' (1,219 mm) 4' (1,219 mm) 4' (1,219 mm) Length1, Standard 4' (1,219 mm), 8' (2,438 mm) 4' (1,219 mm), 8' (2,438 mm) 4' (1,219 mm), 8' (2,438 mm) Weight, Nominal 1.2 lbs. / sq. ft. (5.9 k/m2) 2.0 lbs. / sq. ft. (10 k/m2) 2.5 lbs. / sq. ft. (12 k/m2) 1 Edges Square Square Square Flexural Strength1, Parallel ≥ 40 lbf. (178 N) ≥ 80 lbf. (356 N) ≥ 100 lbf. (445 N) Humidified Deflection1 N/A ≤ 2/8" (6.4 mm) ≤...

DEXcell® brand Glass Mat Roof Board PRODUCT COMPARISON DEXcell® Securock® DensDeck® DEXcell® Securock® DensDeck® DEXcell® Securock® DensDeck® Performance Glass Mat Glass Mat1 Glass Mat2 Glass Mat Glass Mat1 Glass Mat2 Glass Mat Glass Mat1 Glass Mat2 per ASTM D3273 ASTM StandardCl 177 Cl 177 Cl 177 Cl 177 Cl 177 Cl 177 Cl 177 Cl 177 Cl 177 1. USG Securock" data taken from USG literature, Form #RF39/rev. 6-14 2. Georgia-Pacific data taken from GP literature, Item #622602 - 8/14 Thickness1/47]1/T5/8" 4'x4' DEXcell Glass Mat Pieces per pallet 60 48 44 Sq. ft. per truck38,40023,04016,900 Weight...

DEXcell® brand FA Glass Mat Roof Board DEXcell® brand FA Glass Mat Roof Board has heavy-duty coated fiberglass facers and an enhanced mold-resistant gypsum core. This mold- and moisture-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,...

DEXcell® brand FA Glass Mat Roof Board Technical Data PHYSICAL PROPERTIES 1/4" DEXcell® 1/2" DEXcell® 5/8" DEXcell® FA Glass Mat FA Glass Mat FA Glass Mat Thickness1, Nominal 1/4" (6.4 mm) 1/2" (12.7 mm) 5/8" (15.9 mm) Width1, Nominal 4' (1,219 mm) 4' (1,219 mm) 4' (1,219 mm) Length1, Standard 4' (1,219 mm), 8' (2,438 mm) 4' (1,219 mm), 8' (2,438 mm) 4' (1,219 mm), 8' (2,438 mm) Weight, Nominal 1.2 lbs. / sq. ft. (5.9 k/m2) 2.0 lbs. / sq. ft. (10 k/m2) 2.5 lbs. / sq. ft. (12 k/m2) 1 Edges Square Square Square Flexural Strength1, Parallel ≥ 40 lbf. (178 N) ≥ 80 lbf. (356 N) ≥ 100 lbf. (445...

PRODUCT COMPARISON DEXcell® FA Securock® DensDeck® DEXcell® FA Securock® DensDeck® DEXcell® FA Securock® DensDeck® Performance Glass Mat Gyp.-Fiber1 Prime2 Glass Mat Gyp.-Fiber1 Prime2 Glass Mat Gyp.-Fiber1 Prime2 1. USG Securock® data taken from USG literature, Form #RF39/rev. 6-14 2. Georgia-Pacific data taken from GP literature, Item #622602 - 8/14 Thickness14"1/2"5/8" 4' x 4' DEXcell® FA Glass Mat Pieces per pallet 60 48 44 Sq. ft. per truck38,40023,04016,900 Weight per truck, lbs.48,00048,38447,139 4' x 8' DEXcell® FA Glass Mat Pieces per pallet 44 30 30 Sq. ft. per...