DEXcell® brand FA GLASS MAT ROOF BOARD Description DEXcell® brand FA Glass Mat Roof Board has heavy duty coated fiberglass facers and an enhanced mold-and moisture-resistant gypsum core. The precoated facers sealed surface technology is designed to increase the coverage of membrane adhesives and enhance the performance of the bond strength of the system. The DEXcell FA Roof Boards help reduce the amount of adhesive used and may eliminate the need for a field primer. Consult the system manufacturer for actual priming requirements. This mold- and moisture-resistant gypsum panel is a substrate board, thermal barrier and/or cover board for commercial roofing applications. It scores and cuts easily, and it is specially coated on the front, back and sides for easily handling. Use it in a wide variety of roofing systems, including fully adhered, modified bitumen, fluid applied, spray foam and metal roofs. It also serves as a fire barrier and thermal barrier. Basic Uses APPLICATIONS • Use DEXcell® FA 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 adhered roofing assemblies. DEXcell FA 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. • Use it to sheath the roof side of parapet and penthouse walls. ADVANTAGES • Scores and snaps easily. • Fiberglass mat on face and back has special coating for ease of use in handling and installation. • 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. • Anti-microbial per ASTM D6329. • Resists the growth of mold per ASTM D3273 with a score of 10, the best possible score. • Precoated facers seal the surface allowing improved adhesive coverage and bond. • Eliminates the need for a field-applied primer for many fully adhered roofing membrane applications. • High-density coverboard/thermal barrier. 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 FA 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 FA 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 FA Glass Mat Roof Board. In typical installations, butt board edges and ends loosely. Submittal Approvals: (Stamps or Signatures)

TECHNICAL DATA PHYSICAL PROPERTIES 1/4" DEXcell FA 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 FA Glass Mat Roof Board DEXcell FA Glass Mat Roof Board DEXcell FA Glass Mat Roof Board Surface Burning Characteristics Smoke Development Fire Classification Fire-Resistance Characteristics Applicable Standards...

DEXcell® brand brand GOLD BOND® FA GLASS MAT DURASAN PREFINISHED ® ROOF BOARD GYPSUM BOARD SAFETY Technical Information: Technical Information: 800-NATIONAL 800-NATIONAL 800-628-4662 800-628-4662 Although DEXcell FA 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. Caution: Because this product contains fiberglass, dust and glass fibers may be released during normal handling, which could result...

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. FA Glass Mat Roof Board 2001 Rexford Road Charlotte, NC 28211 (704) 365-7300 NationalGypsum.com