! j I I - National Roofing Contractors Association

11. PIRFSfONE BUnDING PRODUCTS 00.For information concerning acceptable substrates for Rubbergard .~EPDM, contact Firestone for specifications.12. GFDAOO, SPAThe methods of application for Gedaco product are: torch-on, hot bitumen, cold adhesive, and mechanical attachment.13. GOODYFAR"I1RB.I:. RUBBER OOMPANYVersigard II and Versigard roofing membranes carry fire ratings when used over specified insulation.14. IMPER rrAUA SPANew roofing and reroofing: Imper Italia membranes are well suited to all new roofing and m~t reroofing applications. In every circumstancethe specifier or the roofing contractor must take into consideration the following requirements: type and condition of the surfacing, insulationand, m~t important, ensuring proper drainage. To ensure a good bonding, use a proper primer, such as Impertene Primer or one approvedby Imper Italia Spa.Protection: When the black membranes Para Ion NT4 or Triplene are applied over an insulation, a lightweight protection with ElastomulG or Parwenol 4822 Alluminio is recommended. Elastomul G is an acrylic modified paint with a water base available in different colors, whiteParwenol 4822 Alluminio is a solvent-based aluminum paint. Other membranes are already self-protected.Special instructions: The rolls should be stored in covered warehouses and in a vertical position, and, if possible, not stacked. It isrecommended that they stored at a temperature of not less than 41 F. They should be unloaded at the worksite or in the warehouse with care.Note: All membranes are treated with Termotene. Termotene is a patented treatment in which a thin film of thermoplastic resins is appliedto the undersurface during the manufacturing process. Under normal circumstances, the Termotene treatment performs as a separating layerbetween the different turns of the roll, but when heated by flame, it becomes a high-power adhesive. 1ne advantages one obtains with,Termotene include a reduced gas consumption and a greater speed of application. It is preferable that the flame of the torch be directed tothe substrate as well as to the membrane being applied.",co.15. KOPPERSBUR: Other: Felts for Spec #410 and #420 incorporatecoal-tar-impregnated glass fiber felts (far-Glas), ASfM D44'XJ, which is similar to ASfM D2178 Type IV, except that the felts are coal-tarimpregnated.Modified Bitumen: Kopper modified bitumen specifications require a base ply.Contact Koppers Sales and SeIVice Center at 1-800-558-2700 for additional information.16. MERaIANr.l:. EVANS INc.Zip Rib structural standing seam roofing has been in use for over 25 years, with installations from Adak, Alaska to the coast of the Caribbean.It is available in steel and aluminum in both 12-and 1&-inch widths. The system utilizes allowable load spans in accordance with modified &330test procedures, which accurately depict field seIVice capabilities, not calculated values that may yield non conservative allowable load ranges.For further information, call 1-800-257-6215.1 7 . NO RD BI'IUNI U.s. INc."Although the NRCA Roofin2 Materials Guide is an excellent guide to types of modified membranes and the associated information it stillis a general guide, and it is vitally important to always follow the manufacturer's published specifications and recommendations." Consult NordBitumi for physical test results on its membrane products.Nord Bitumi's Nordboard recovery insulation eliminates the need for a base sheet in APP torch-applied applications.The new Nordflex-FR and the Duo-Ply-FR systems are U.L-Oass approved over a wider array of decks, insulations, thicknesses ofinsulations, and slopes.The new Nordpoly 4M FR is a U.L. Oass A polyester-reinforced torch-applied membrane.,"'"-,..218c.'" ,-~c"~~-'~-~-'-'."._'-'.~'"