Loading...
HomeMy WebLinkAboutFile Documents.119 S Spring St.0061.2019 (7).ACBKManufacturer Georgia-Pacific Gypsum Georgia-Pacific Canada 133 Peachtree Street 2180 Meadowvale Boulevard, Suite 200 Atlanta, GA 30303 Mississauga, ON L5N 5S3 Technical Service Hotline: 1-800-225-6119 Description DensDeck® Prime Roof Board has been enhanced to provide a broader compatibility and higher performance with roofing adhesives. Face mat enhancements allow adhesives to be applied more uniformly and consistently. In adhered, single ply membrane testing, enhanced DensDeck Prime demonstrated an average of 24% better bond than the original products, when using solvent based adhesives. (Average based on 60 sq.ft./gal coverage rates.)* Choose DensDeck Prime Roof Boards for adhered and self-adhered “peel & stick” roofing systems, as well as hot mopped, cold mastic and torch-applied modified bitumen roofs. Enhanced DensDeck Prime Roof Boards create a stronger and more economical installation by reducing the amounts of mastic or adhesive used and potentially eliminates the field primer. Consult with membrane manufacturer for actual priming requirements. DensDeck Prime Roof Boards are the first and only fiberglass mat gypsum roof boards with a 90-day weather exposure limited warranty when applied vertically on a parapet wall.** (Limited to 1/2( and 5/8( products only.) Primary Uses Roof system manufacturers and designers have found DensDeck Prime Roof Board to be compatible with many types of roofing systems, including: modified asphalt, single-ply, metal systems, recover board, as well as an overlayment for polyisocyan- urate and polystyrene insulation. DensDeck Prime Roof Board can also be used as a form board for poured gypsum concrete deck in roof applications as well as a substrate for spray foam roofing systems. 1/2( (12.7 mm) and 5/8( (15.9 mm) DensDeck Prime Roof Board may also be used in vertical applications as a backer board or liner for the roof side of parapet walls. DensDeck Prime Roof Board may allow the bonding of cold mastic modified bitumen and torching directly to the surface. Consult with the system manufacturer for recommendations on this application. DensDeck Prime Roof Board is the preferred substrate for vapor retarders. Standards and Code Approvals DensDeck Prime Roof Boards are manufactured to meet ASTM C1177 and have the following approvals: • Florida Product Approved • Miami-Dade County Product Control Approved Recommendations and Limitations DensDeck Prime Roof Boards are manufactured to act with a properly designed roof system following good roofing practices. The actual use of DensDeck Prime Roof Board as a roofing component in any system or assembly is the responsibility of the roofing system’s design authority. Consult with the appropriate system manufacturer and/or design authority for system and assembly specifications and instructions on applying other products to DensDeck Prime Roof Board. Georgia-Pacific does not warrant and is not responsible for any systems or assemblies utilizing DensDeck Prime Roof Board or any component in such systems or assemblies other than DensDeck Prime Roof Board. The need for a separator sheet between the DensDeck Prime Roof Board and the roofing membrane must be determined by the roof membrane manufacturer or roofing system designer. Confirm any priming requirements with the membrane manufacturer. When applying solvent-based adhesives or primers, allow sufficient time for the solvent to flash off to avoid damage to roofing components. DensDeck Prime Roof Boards should not be subjected to abnormal or excessive loads or foot traffic, such as, but not limited to, use on plaza decks or under steel-wheeled equipment that may fracture or damage the panels. Provide suitable roofing system protection when required. When using DensDeck Prime Roof Boards for hot-mopped applications, Georgia-Pacific recommends maximum asphalt application temperatures of 425°F (218°C) to 450°F (232°C). Application temperatures above these recommended temperatures may adversely affect roof system performance. Consult and follow the roofing system manufacturer’s specifications for full mopping applications and temperature requirements. When using DensDeck Prime Roof Board as a substrate for torch applications, ensure that the product is dry and that the proper torching technique is used. Limit the heat to the DensDeck Prime Roof Board. Maintain a majority of the torch flame directly on the roll. Conditions beyond the control of Georgia-Pacific, such as weather conditions, dew, leaks, application temperatures and techniques may cause adverse effects with roofing systems. Handling and Use–CAUTION This product contains fiberglass facings which may cause skin irritation. Dust and fibers produced during the handling and installation of the product may cause skin, eye and respiratory tract irritation. Avoid breathing dust and mini- mize contact with skin and eyes. Wear long sleeve shirts, long pants and eye protection. Always maintain adequate ventilation. Use a dust mask or NIOSH/ MSHA approved respirator as appropriate in dusty or poorly ventilated areas. Moisture Management DensDeck Prime Roof Boards, like other components used in roofing systems, must be protected from exposure to moisture before, during and after installation. Remove the plastic packaging from all DensDeck Prime Roof Board immediately upon receipt of delivery. Failure to remove the plastic packaging may result in entrapment of condensation or moisture. DensDeck Prime Roof Board stored outside must be stored level and off the ground and protected by a breathable waterproof covering. Provide means for air circulation around and under stored bundles of DensDeck Prime Roof Board. DensDeck Prime Roof Board must be covered the same day as installed. Avoid application of DensDeck Prime Roof Boards during rain, heavy fog and any other conditions that may deposit moisture on the surface, and avoid the overuse of non-vented, direct-fired heaters during winter months. When roofing systems are installed on new poured concrete or light weight concrete decks or when re-roofing over an existing concrete deck, a vapor barrier should be installed above the concrete to retard the migration of water from the concrete into the roof assembly. Always consult the roofing system manufacturer or design authority for specific instructions for applying other products to DensDeck Prime Roof Boards. Moisture vapor movement by convection must be eliminated, and the flow of water by gravity through imperfections in the roof system must be controlled. After a leak has occurred, no condensation on the upper surface of the system should be tolerated, and the water introduced by the leak must be dissipated to the building interior in a minimum amount of time. Although DensDeck Prime Roof Boards are engineered with fiberglass facings and high density gypsum cores, the presence of free moisture can have a detrimental effect on the performance of the product and the installation of roofing membranes. For example, hot asphalt applications can blister; torched modified bitumen may not properly bond; and adhesives for single ply membranes may not dry properly. Technical Service Hotline 1.800.225.6119 or www.densdeck.com Submittal Approvals Job Name Contractor Date Stamps / Signatures continued * Testing was done in accordance with FM approvals 4470, Appendix C: Small Scale Tests, Membrane Delamination Tests for Roofing Membranes and Substrates Using Tensile Loading. ** For complete warranty details, visit www.DensDeck.com. (Limited to 1/2( and 5/8( products only.) U.S.A. Georgia-Pacific Gypsum LLC Georgia-Pacific Gypsum II LLC Canada Georgia-Pacific Canada LP SALES INFORMATION AND ORDER PLACEMENTU.S.A. West: 1-800-824-7503 Midwest: 1-800-876-4746 South Central: 1-800-231-6060 Southeast: 1-800-327-2344 Northeast: 1-800-947-4497 CANADA Canada Toll Free: 1-800-387-6823 Quebec Toll Free: 1-800-361-0486 TECHNICAL INFORMATION U.S.A. and Canada: 1-800-225-6119, www.gpgypsum.com Properties 1/4( (6.4 mm) 1/2( (12.7mm) 5/8( (15.9 mm) Thickness, nominal 1/4( (6.4 mm) ± 1/16( (1.6 mm) 1/2( (12.7 mm) ± 1/32( (.8 mm) 5/8( (15.9 mm) ± 1/32( (.8 mm) Width, standard 4* (1219 mm) ± 1/8( (3 mm) 4* (1219 mm) ± 1/8( (3 mm) 4* (1219 mm) ± 1/8( (3 mm) Length, standard 4* (1219 mm) and 4* (1219 mm) and 4* (1219 mm) and 8* (2438 mm) ± 1/4( (6.4 mm) 8* (2438 mm) ± 1/4( (6.4 mm) 8* (2438 mm) ± 1/4( (6.4 mm) Weight, nominal, lbs./sq. ft. (Kg/m2) 1.2 (5.9) 2.0 (9.8) 2.5 (12.2) Surfacing Fiberglass mat with Fiberglass mat with Fiberglass mat with non-asphaltic coating non-asphaltic coating non-asphaltic coating Flexural Strength1, parallel, lbf. min. (N) ≥40 (178) ≥80 (356) ≥100 (444) Flute Spanability2 2-5/8( (66.7 mm) 5( (127 mm) 8( (203 mm) Permeance3, Perms (ng/Pa•S•m2) >30 (>1710) >23 (>1300) >17 (>970) R Value4, ft2•°F•hr/BTU (m2•K/W) .28 .56 .67 Linear Variation with Change in Temp., in/in °F (mm/mm/C°) 8.5 x 10-6 (15.3 x 10-6) 8.5 x 10-6 (15.3 x 10-6) 8.5 x 10-6 (15.3 x 10-6) Linear Variation with Change in Moisture 6.25 x 10-6 6.25 x 10-6 6.25 x 10-6 Water Absorption5, % max <10 <10 <10 Compressive Strength6, psi nominal 900 900 900 Surface Water Absorption, grams, nominal <2.0 <2.0 <2.0 Flame Spread, Smoke Developed (ASTM E84) 0/0 0/0 0/0 Bending Radius 4’ (1219 mm) 6’ (1829 mm) 8’ (2438 mm) Technical Service Hotline 1.800.225.6119 or www.densdeck.com Physical Properties 1. Tested in accordance with ASTM C473 method B. 2. Tested in accordance with ASTM E661. 3. Tested in accordance with ASTM E96 (dry cup method). 4. Tested in accordance with ASTM C518 (heat flow meter). 5. Specified values per ASTM C1177. 6. Tested in accordance with ASTM C473. Moisture accumulation may also significantly decrease wind uplift and vertical pull resistance in the system or assembly. DensDeck® Prime Roof Boards containing excessive free moisture content may need to be evaluated for structural stability to assure wind uplift performance. Fire Resistance Classifications DensDeck Prime Roof Boards are excellent fire barriers over combustible and noncombustible roof decks, including steel decks. UL 790 Classification. DensDeck Prime Roof Boards have been classified by Underwriters Laboratories LLC (UL) for use as a fire barrier over combustible and noncombustible decks in accordance with the ANSI/UL 790 test standard. The UL classification includes a comprehensive Class A, B or C rating. For additional information concerning the UL 790 classification, consult the UL Certification Directory. UL 1256 Classification. DensDeck Prime Roof Boards have also been classified by UL in roof deck constructions for internal (under deck) fire exposure in accordance with the ANSI/UL 1256 Steiner Tunnel test. For additional information concerning the UL 1256 classification, consult the UL Certification Directory. FM Class 1 Approvals. DensDeck Prime Roof Boards are included in numerous roofing assemblies with a Factory Mutual (FM) Class 1 fire rating. 1/4( (6.4 mm) DensDeck Prime Roof Boards have passed testing under the FM Calorimeter Standard 4450 and have been approved by FM as such for insulated steel deck roofs when installed according to the conditions identified by FM. For more information concerning FM Approvals and FM Class 1 assemblies with DensDeck Prime Roof Boards, consult FM or RoofNav®. Type X. 5/8( (15.9 mm) DensDeck® Prime Fireguard® Roof Boards are manufactured to meet the “Type X” requirements of ASTM C1177 for increased fire resistance beyond regular gypsum board. UL Fire Resistance Ratings. 5/8( (15.9 mm) DensDeck Prime Fireguard Roof Boards are designated as Type DD by UL and included in assembly designs investigated by UL for hourly fire resistance ratings. 5/8( (15.9 mm) DensDeck Prime Fireguard Roof Boards may also replace any unclassified 5/8( (15.9 mm) gypsum board in an assembly in the UL Fire Resistance Directory under the prefix “P”. Flame Spread and Smoke Developed. When tested in accordance with ASTM E84, DensDeck Prime Roof Boards had Flame Spread 0, Smoke Developed 0. Wind Uplift DensDeck Prime Roof Boards are included in numerous assemblies evaluated by FM or other independent laboratories for wind uplift performance. For information concerning such assemblies, please visit www.roofnav.com. TRADEMARKS DENSDECK, FIREGUARD and the GEORGIA-PACIFIC logo are trademarks owned by or licensed to Georgia-Pacific Gypsum LLC. ROOFNAV is a registered mark of FM Global. WARRANTIES, REMEDIES AND TERMS OF SALE For current warranty information for this product, please go to www.gpgypsum.com and select the product for warranty information. All sales of this product by Georgia-Pacific are subject to our Terms of Sale available at www.gpgypsum.com. UPDATES AND CURRENT INFORMATION The information in this document may change without notice. Visit our website at www.gpgypsum.com for updates and current information. CAUTION For product fire, safety and use information, go to www.buildgp.com/safetyinfo or call 1-800-225-6119. FIRE SAFETY CAUTION Passing a fire test in a controlled laboratory setting and/or certifying or labeling a product as having a one-hour, two-hour, or any other fire resistance or protection rating and, therefore, as acceptable for use in certain fire rated assemblies/systems, does not mean that either a particular assembly/system incorporating the product, or any given piece of the product itself, will necessarily provide one-hour fire resistance, two-hour fire resistance, or any other specified fire resistance or protection in an actual fire. In the event of an actual fire, you should immediately take any and all actions necessary for your safety and the safety of others without regard for any fire rating of any product or assembly/system. ©2015 Georgia-Pacific Gypsum LLC. All rights reserved. 5/15. GP-TM Lit. Item #102169.