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COATINGSPRO JANUARY 2017 55 plates and screws at regular intervals. Finally, the Fusion gun was used to fill the stitch areas and bond the spray foam areas seamlessly together. To be sure the spray foam roofing application process was done seamlessly and without added difficulties, Harvey and the Wedge Roofing crew used a full-time three-person carpentry crew. eir responsibilities included "temporarily suspending rooftop equipment while in operation, fabricating equipment curbs to a code-compliant height to facilitate the roof 's installa- tion, and seamlessly setting the equipment, all without service interruption," Harvey explained. After that work was done, "they modified the rooftop structures to allow permanent attachment to the building structure, thus allowing complete integration into the spray foam system," he continued. A fter all of the spray foam insulation was installed, the team was just about ready to move on to coatings — but not quite yet. To prepare for the application of the silicone, "an army of skilled craftsmen utilizing 9 -inch [22.9 cm] orbital grinders, Sawzalls, pneumatic shaving tools, and custom fabri- cated shaping tools set to work on detailing the finished spray foam application ahead of the final step," Har vey said. T hat included DeWalt hand tools that were utilized both for shaping and car ving the foam. A fter the spray foam was installed, the coating work began. T he crew put dow n Premium Spray Products' PR EMICOTE 2100 high solids silicone using Graco's X TR-7 and 933 pumps. T hey applied 2 gallons (7.6 L) of the silicone product at an average thickness of 15.4 dr y mils (391.2 microns). Lastly, they applied an additional half gallon (1.9 L) of silicone coating to receive Lucas Products #10 fire white granules. T he overall system had a thickness of approximately 30 mils (762.0 microns). Planning and Coordination Wedge Roofing maintains rigorous worker safety certifications and followed all safety regulations relating to construction, height, and worker safety, Har vey said. Wedge Roofing's personal protective equipment policy meant the crew that applied the spray foam and silicone coating were outfitted " head to toe w ith chemical-resistant Ty vek suits, gloves, and full-face masks consisting of 3M's 7500 series respirators w ith 5201 filters," Har vey explained. "Furthermore, access was tightly controlled to the work area to ensure a safe work environment," he said. e job came with several major challenges. In addition to the creative method to get around the inability to decommission the rooftop components, the nature of Small Precision Tools' business posed an additional challenge. "e facility is a lab clean environment under continuous operation," Harvey said. "at meant careful consideration and meticulous planning and coordinating with on-site facilities personnel was required when temporarily downing multiple air conditioning and make-up air handling units." e team had a 15-business-day deadline to get the job done, but they were able to wrap things up on day 14. "On day 14 of Wedge Roofing's projected 15-day job duration, the masking and protecting materials were removed to reveal a pristine roof worthy of Premium Spray Products' 20-year full system warranty," Harvey said. "A lthough Small Precision Tool 's products differ greatly in size and purpose to the roof installed by Wedge Roofing, we do share important core values of precision, care, and craftsman- ship," Harvey said. "eir unyielding commitment to exacting standards, innovative and pioneering techniques, and the commitment to deliver a product that performs was obvious, and we believe they are highly deserving of consideration for this important roofing recognition." e representative for Premium Spray Products, A l Kennedy, was also very impressed. "is is the most technically challenging and difficult spray foam roof I have ever encountered," Kennedy said. Kennedy did a complete and thorough inspection of the roof before issuing a warranty. W hen it was done, the manufac- turer's punch list contained zero items requiring attention. CP SPF Roofing Job The crew applied the first coating layer on top of the SPF. Using a Graco XTR-7 and 933 pumps, they applied Premium Spray Products' PREMICOTE 2100 high solids silicone at ~15.4 dry mils (391.2 microns). The final step was completed while the facility remained open, as was done with the work that preceded it. That final layer was the PREMICOTE coating with Lucas Products' #10 fire white granules.