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DEXcell® Glass Mat Roof Board

DEXcell® Glass Mat Roof Board
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DEXcell® brand GLASS MAT ROOF BOARD Description 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. Basic Uses APPLICATIONS • Use DEXcell® 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, mold and impact resistance. • Use it as an insulation coverboard in roofing assemblies. DEXcell 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. ADVANTAGES • Scores and snaps easily. • Fiberglass mat on face and back has 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. • 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 or FM 4450. No additional thermal barrier is required as per IBC 2603.4.1.5. • Anti-microbial per ASTM D6329. Installation Recommendations General • Install roof boards in accordance with methods described in the standards and references cited in this document. • Examine and inspect deck substrate to which roof boards are to be applied. Remedy all defects prior to installation of the roof boards. • Provide minimum 1/4 in. (6.4 mm) clearance between boards and adjacent concrete or masonry to minimize wicking of moisture. • Install fire-rated assemblies in accordance with the details found in the UL Fire Resistance Directory: ul.com. • See Physical Properties chart on next page for maximum flute span when panels are applied directly over metal decking. Wind Uplift • DEXcell Glass Mat Roof Boards are included in numerous assemblies evaluated by Factory Mutual Global (FMG) and other independent laboratories for wind-uplift performance. For information concerning such assemblies, visit: roofnav.com. • Refer to roof system manufacturer's written instructions, local code requirements, Factory Mutual Global (FMG) and Underwriters Laboratories (UL) requirements for proper installation techniques. • Use fasteners or adhesives specified in accordance with system requirements. Install approved fasteners with plates into the DEXcell Glass Mat Roof Board. Install fasteners and adhesives in compliance with the roof system manufacturer's installation recommendations and FMG Property Loss Prevention Data Sheet 1-29. Proper fastener spacing or adhesive application is essential to achieve wind-uplift performance. • Locate board edge joints on, and end joints parallel to, metal deck ribs. Stagger end joints of adjacent lengths of DEXcell Glass Mat Roof Board. In typical installations, butt board edges and ends loosely. Resists the growth of mold per ASTM D3273 with a score of 10, the best possible score. High-density coverboard/thermal barrier. Job Name: Contractor: Date: Submittal Approvals: (Stamps or Signatures)

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TECHNICAL DATA PHYSICAL PROPERTIES 1/4" DEXcell Glass Mat Thickness , Nominal Width , Nominal Weight, Nominal Flexural Strength , Parallel Nail Pull Resistance Hardness1 - Core, Edges and Ends Bending Radius Thermal Resistance Water Absorption (% of Weight) Coated Fiberglass Coated Fiberglass Coated Fiberglass Flute Spanability Mold Resistance Prduct Standard Compliance Core Type DEXcell Glass Mat Roof Board DEXcell Glass Mat Roof Board DEXcell Glass Mat Roof Board Non-combustible Core Non-combustible Core Non-combustible Core Surface Burning Characteristics Smoke Development Fire...

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DEXcell® brand brand GOLD BOND® GLASS MAT PREFINISHED DURASAN ® ROOF BOARD GYPSUM BOARD SAFETY Technical Information: Technical Information: 800-NATIONAL 800-NATIONAL 800-628-4662 800-628-4662 Although DEXcell Glass Mat Roof Boards are engineered with coated fiberglass facers and high-density gypsum cores, the presence of free moisture can have an adverse effect on product performance and may compromise the installation of additional roofing system components.Remove the damaged laminate underneath and cement the patch in its place with a good quality, vinyl-to-vinyl adhesive. Moisture...

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For More Information ARCHITECTURAL SPECIFICATIONS National Gypsum Company's CSI Master Format® 3-part guide specifications are downloadable as editable Microsoft® Word documents at: nationalgypsum.com. LATEST INFORMATION AND UPDATES For the latest technical information and updates, call NGC Construction Services: 1-800-NATIONAL (628-4662) or visit our website: nationalgypsum.com. Glass Mat Roof Board 2001 Rexford Road Charlotte, NC 28211 (704) 365-7300 NationalGypsum.com

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