CoatingsPro Magazine

SEP 2018

CoatingsPro offers an in-depth look at coatings based on case studies, successful business operation, new products, industry news, and the safe and profitable use of coatings and equipment.

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64 SEPTEMBER 2018 COATINGSPROMAG.COM extreme steep slopes and heights of the roofs, combined with difficult logistics, drove the costs of a metal roof system beyond the reach of the Southern Company," he said. With a complete roof replacement off the table, Hoar Construction began researching options and alternatives, including a retrofit overlay metal system, ceramic coatings, acrylic coatings, and polyureas. is is where the expertise of the West Roofing System team came into play. Ultimately, Hoar and the Southern Company decided to have the West Roofing crew power wash the entire roof surface, replace the missing fasteners with oversized fasteners, treat all end-lap seams, fasteners, and transition details with an average 40 mils (1,016.0 microns) of custom blended butter/trowel grade silicone sealant, install an average 10-mil (254.0 microns) basecoat of Accella Poly-Sil 2200 solvent-borne silicone coating, and apply a topcoat of an average 20 mils (508.0 microns) of Poly-Sil 2500 High Solids silicone coating in a custom-tinted terra cotta color. "e Accella Poly-Sil 2200 acted as a primer, rust inhibitor, and basecoat all in one, saving a lot of labor and materials. is was huge for this project, as accessing the extreme slopes of the roofs was very difficult. And the custom-tinted Accella Poly-Sil 2500 was a perfect match to the existing roof color. Everyone involved was very happy that we wouldn't need to change the look of the big red roof towers," said Moore. Getting Ready With the plan in place, the West Roof ing Systems crew ar r ived on the scene ready to beg in the sur face preparation and coating application process on the 100,000 square feet (9,290.3 m²) of roof area on the South Tower and the 60,000 square feet (5,574.2 m²) of roof area on the Nor th Tower. West Roof ing Systems deployed four crews of t wo members each to work on each scope of work in a wave patter n across the roof. According to Moore, two team members would power wash a section using a 3,500-psi (24.1 MPa) Pressure Pro, and two more crew members would then install the butter/trowel grade silicone sealant repairs. Another two-person crew would then apply the basecoat. Finally, the section would be finished off with two crew members applying the topcoat. "As the power washing of a section was completed, those two men would stage the safety for the next section and continue to move forward. In addition, the four crews were supported by an onsite material supply man and another man to manage the different life lines and perimeter guardrail system," explained Moore. Iconic Roofs THINK CREATIVE. THINK SIKAFLOOR. OUR DECORATIVE FLOORING SYSTEMS OFFER A VARIETY OF SURFACING OPTIONS FOR EVERY ENVIRONMENT. TURNING YOUR FLOORS INTO A ONE OF A KIND MASTERPIECE. ASK THE EXPERTS HOW TO CREATE YOUR WORK OF ART Call 844-529-7101 or visit www.sikafloorusa.com Re ad e r In qui r y at co ati n g sp ro m a g.co m /i n q0918

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