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16 ROOF COATINGS 2017 COATINGSPROMAG.COM Material Choices e appropriate coating choice for each application is likely to vary, based on the unique needs of each roof. According to coatings manufacturer GAF, which offers various coatings under the HydroStop and United Coatings brands, many roofing jobs will use either acrylic coatings, polyurethane coatings, or silicone coatings. Acrylic or elastomeric coatings are highly reflective, ultraviolet (UV) resistant, cost efficient, and can be used in most climates. However, acrylics can lose thickness with weathering, need to be applied at above 50 °F (10 °C), and often do not perform well in situations with ponding water. Silicone coatings are cured by moisture — and in some cases, even by humidity. Silicones weather better than other coatings with almost no erosion, according to GAF, and they do not harden or become brittle. Silicones are good in situations with ponding water, and in some cases, the use of silicone can eliminate the need for a primer. Based on these properties, silicones can also be among the most expensive options. But because it is difficult to adhere to silicone, the existing coating may need to be removed completely when the roof is recoated. Otherwise, it can only be recoated with a compatible silicone. Polyurethane coatings are considered to be the most Roof Coating Systems Roof Coating Systems continued from page 13 Roof coatings are offered in silicones, polyurethanes, and acrylics, to highlight a few. Spray polyurethane foam (SPF) may be another option to consider. Several companies, such as Kemper System offer both SPF and coatings. VENDOR TEAM Magnolia Brush Manufacturers, Ltd. Equipment manufacturer P.O. Box 932 1001 N Cedar St. Clarksville, TX 75426 (800) 248-2261 Miller Fall Protection by Honeywell Safety equipment manufacturer 1345 15th St. Franklin, PA 16323 (800) 873-5242 National Coatings Coatings manufacturer 1201 Calle Suerte Camarillo, CA 93012 (800) 423-9557 National Roofing Contractors Association Education 10255 W Higgins Rd. Rosemont, IL 60018 (847) 299-9070 Polyglass Coatings manufacturer 1111 West Newport Center Dr. Deerfield Beach, FL 33442 (954) 233-1330 Polyurethane Machinery Corp. Equipment manufacturer One Komo Dr. Lakewood, NJ 08701 (732) 415-4400 RM Lucas Coatings manufacturer 12400 S Laramie Ave. Alsip, IL 60803 (773) 523-4300 Roof Coatings Manufacturers Association Education 529 14th St., NW Washington, D.C. 20045 (202) 591-2452 RoofscanIR Services provider P.O. Box 1403 Bonsall, CA 92003 (888) 722-6447 Rooftop Equipment Equipment manufacturer 4617 New Castle Rd. New Wilmington, PA 16142 (800) 222-6454 Rust-Oleum Coatings manufacturer 11 Hawthorn Pkwy. Vernon Hills, IL 60061 (847) 367-7700 Seymour Midwest Equipment manufacturer P.O. Box 1674 Warsaw, IN 46581 (574) 267-7875 Spray Polyurethane Foam Alliance Education 3927 Old Lee Hwy. #101B Fairfax, VA 22030 (800) 523-6154 SprayWorks Equipment Equipment manufacturer 215 Navarre Rd. SW Canton, OH 44707 (330) 587-4141 Stockton Infrared Thermographic Services Services provider 8472 Adams Farm Rd. Randleman, NC 27317 (800) 248-7226 Volatile Free, Inc. Coatings and SPF manufacturer 19500 Janacek Ct. Brookfield, WI 53045 (800) 307-9218 The Wooster Brush Company Equipment manufacturer 604 Madison Ave. P.O. Box 6010 Wooster, OH 44691 (800) 392-7246

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