dexcell
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DEXcell FA Glass Mat Roof Boards DEXcell Glass Mat Roof Boards DEXcell Cement Roof Boards TM Reinforced Edge Fiberglass Mesh Cementitious Core DEXcell brand Cement Roof Board is a lightweight moisture and mold resistant cement board designed for use as a coverboard and/or thermal barrier in all commercial roofing applications. TM DEXcell Cement Roof Board is a fire barrier and thermal barrier manufactured of Portland cement, lightweight aggregate and glass mesh that provides an exceptionally hard, durable surface that is able to withstand prolonged exposure to moisture. It is produced in 7/16" thickness and 4' wide in 4' and 8' lengths. Basic Uses DEXcell Cement Roof Boards are ideally suited for a wide variety of roofing systems including but not limited to fully-adhered single ply membrane, mechanically attached roof systems, modified bitumen, built up roofing, fluid applied, metal, and spray foam. Also used on the roof side of parapet walls. Features/Benefits m Ideally suited for all roof systems m Fire barrier meets FM Class 1 and UL Class A fire ratings for roofing systems up to unlimited slope per UL 790. m Lightweight cementitious core m Superior moisture resistance m Exceptional freeze/thaw resistance m Excellent bond/pull-through/ uplift values m Impact resistant, extremely durable and dimensionally stable m High compressive strength m Scores and snaps easily m Moisture resistant and resists mold growth on the board per ASTM D 3273 m Recommended for green roofs Fiberglass Mesh Technical Data DEXcell Cement Roof Board are included in numerous assemblies evaluated by FM or other independent laboratories for wind uplift performance. For information concerning such assemblies, visit roofnav.com. Fire Resistance m Complies with requirements of Refer to roof system manufacturer’s written instructions, local code requirements and Factory Mutual Global (FMG and/or Underwriters Laboratories (UL) requirements for proper installation techniques. m Use fasteners specified in accor- dance with system requirements. Install approved fasteners with plates into the DEXcell Cement Roof Board, flush with the surface. Fasteners should be installed in strict compliance with the roof system manufacturer’s installation recommendations and FMG Loss Prevention Data Sheet 1-29. Proper fastener spacing is essential to achieve wind-uplift performance. m Locate edge joints on, and parallel to, deck ribs. Stagger end joints of adjacent lengths DEXcell Cement Roof Board. Butt board edges and ends loosely in typical installations. m See Physical Properties chart for maximum flute span when panels are applied directly over metal decking. m For vertical parapet applications, maximum framing spacing is 16" o.c. m UL 790 – DEXcell Cement Roof Board meets UL Class A fire ratings for roofing systems up to unlimited slope per UL 790 (CAN/ULC-S107), see the UL Certifications Directory for more information. m L 1256 – DEXcell Cement Roof U Board is classified in roof deck constructions in accordance with ANSI/UL 1256, see the UL Certifications Directory for more information. m hen tested in accordance with W ANSI/UL723 (ASTM E 84, CAN/ ULC-S102), DEXcell Cement Roof Board had a Flame Spread 0 and Smoke Developed 0. Fire resistance ratings represent the result of tests on assemblies made up of specific materials in specific configurations. When selecting construction designs to meet certain fire resistance requirements, caution must be used to ensure that each component of the assembly is the one specified in the test. Further, precaution should be taken that assembly procedures are in accordance with those of the tested assembly. (For copies of specific tests, call 1-800-NATIONAL®. For fire safety information, see nationalgypsum.com). PHYSICAL PROPERTIES Thickness, nominal Width, standard Length, standard Weight, nominal, lbs./sq. ft. (kg/m2) Flexural Strength1, psi Flute Spanability2 Permeance3, Perms (ng/Pa.S.m2) R Value4, ft2 ˚F hr/BTU (m2 K/W) Linear Variation with Change in Moisture5 Water Absorption6, % Max. Compressive Strength, psi Nominal Flame Spread, Smoke Developed (ASTM E 84) Bending Radius 1. Tested in accordance with ASTM C 947 2. Tested in accordance with ASTM E 661 3. Tested in accordance with ASTM E 96 (Dry cup method) 4. Tested in accordance with ASTM C 518 (Heat flow meter) 5. Tested in accordance with ASTM C 1037 6. Tested in accordance with ASTM C 473 National Gypsum Company • dexcellroofboard.info • Customer Service: 844-DEXcell (844-339-2355)

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Enhanced Moisture and Mold Resistant Gypsum Core DEXcell brand Glass Mat Roof Board is a moisture and mold resistant gypsum board designed for use as a coverboard and/or thermal barrier in commercial roofing applications. DEXcell Glass Mat Roof Board is ideally suited for mechanically fastened roof systems. TM DEXcell Glass Mat Roof Board is a fire barrier and thermal barrier manufactured with coated fiberglass facers and an enhanced moisture/mold resistant gypsum core. It is produced in 1/4", 1/2", and 5/8" thicknesses and 4' wide in 4' and 8' lengths. DEXcell Glass Mat Roof Board scores...

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