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DEXcell® Tech Guide

DEXcell® Tech Guide
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Roof Board DEXceir FA Glass Mat Roof Boards DEXceir Glass Mat Roof Boards DEXceir Cement Roof Boards Technical Guide

Table of Contents SECTION PAGE Product Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 DEXcell Glass Mat Roof Board . . . . . . . . . . . . . . . . . . . . . . . . . . 4 DEXcell FA Glass Mat Roof Board . . . . . . . . . . . . . . . . . . . . . . . 6 DEXcell Cement Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Typical Roof System Applications . . . . . . . . . . . . . . . . . . . . . . 10 Recommendations, Limitations . . . . . . . . . . . . . . . . . . . . . . . . 14 Warranty . . . . . . . . . . . . . . . . . . . . . . . . . ....

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National Gypsum Company® (“National Gypsum”) has provided the following Product Recommendations and Limitations as guidance for the recommended use, installation and storage of its DEXcell® brand Roof Board products, including without limitation, DEXcell® Glass Mat Roof Board, DEXcell® FA Glass Mat Roof Board, and DEXcell® Cement Roof Board. DEXcell roof products typically constitute one component of a multi-component roof assembly and it is possible that for any given project, the project’s roof design professional, the roof system manufacturer, or any applicable design or construction...

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DEXcell® brand Glass Mat Roof Board is a 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. DEXcell Glass Mat Roof Board is a fire barrier and thermal barrier manufactured with coated fiberglass facers and an enhanced 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 and cuts easily and is specially coated on the front, back and sides for...

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2. Georgia-Pacific data taken from GP literature, Item #622602 - 8/14 Technical Data Fire Resistance Thickness, nominal 1/4" (6.4 mm) 1/2" (12.7 mm) 5/8" (15.9 mm) Width, standard 4' (1219 mm) 4' (1219 mm) 4' (1219 mm) Length, standard 4', 8' (1219, 2438 mm) 4', 8' (1219, 2438 mm) 8' (2438 mm) Weight, nominal, lbs./sq. ft. (kg/m2) 1.2 (5.9) 2.0 (10) 2.5 (12) Surfacing Coated Fiberglass Facer Coated Fiberglass Facer Coated Fiberglass Facer Flexural Strength1, parallel, lbf. min. (N) ≥40 (178) ≥80 (356) ≥100 (445) Flute Spanability2 2-5/8" (67 mm) 5" (127 mm) 8" (203 mm) Permeance3, Perms...

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Heavy Duty Coated Glass Mat DEXcell® brand FA Glass Mat Roof Board is a mold resistant gypsum board designed for use as a coverboard and/or thermal barrier in commercial roofing applications. DEXcell FA Glass Mat Roof Board is ideally suited for fully adhered roof systems. DEXcell FA Glass Mat Roof Board is a fire barrier and thermal barrier manufactured with heavy duty coated fiberglass facers and an enhanced 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 FA Glass Mat Roof Board scores and cuts easily and is...

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Fiberglass Mesh Reinforced Edge 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. ® 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...

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PRODUCT COMPARISON Thickness, nominal 7/16" (11.1 mm) Width, standard 4' (1219 mm) Length, standard 4', 8' (1219, 2438 mm) Weight, nominal, lbs./sq. ft. (kg/m2) 2.1 (10.3) Flexural Strength1, psi >1000 Flute Spanability2 12" (304 mm) Permeance3, Perms (ng/Pa.S.m2) >5 (287) R Value4, ft2 ˚F hr/BTU (m2 K/W) .28 Linear Variation with Change in Moisture5 ≤0.07% Water Absorption6, % Max. <10 Compressive Strength, psi Nominal 1250 Flame Spread, Smoke Developed (ASTM E 84) 0/0 Bending Radius 5' (1524 mm) 7/16" 1/2" DEXcell Cement Securock Cement Performance Roof Board Roof Board Flexural Strength,...

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Typical Roof System Applications The following are examples of typical roof system applications using DEXcell Roof Boards and should be considered to be for illustration purposes only. Consult with the roof system manufacturer or roof design professional for their recommendations of use and installation. National Gypsum Company does NOT provide roof design services, and makes no warranties or representation with respect to any particular roof system or any components or materials, other than DEXcell Roof Boards. It is the responsibility of the roof system manufacturer or roof design...

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Thermal Barrier/Vapor Barrier Membrane Vapor Retarder DEXcell FA Glass Mat Roof Board DEXcell FA Glass Mat Roof Board DEXcell FA Glass Mat Roof Board Asphaltic Membrane DEXcell Glass Mat Roof Board Steel Deck Parapet Wall Framing DEXcell FA Glass Mat Roof Board Steel Deck DEXcell Cement Roof Board Hot Asphalt Ribbon/Spot Mopping DEXcell Glass Mat Roof Board Steel Deck

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