CoatingsPro Magazine

JUL 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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Page 40 of 68

40 JULY 2018 COATINGSPROMAG.COM Smooth and Steady During the second installation, the crew got to the good stuff. ey installed the tapered iso board to the roof on top of the temporary waterproofing system with metal fasteners and SPF adhesive, which started with a plan of attack developed by a design engineer at ABC Supply Co. "ey laid out a roof plan for us to follow," Betts explained. To achieve the right slope to the four drains, they needed to hit a taper of ¼ inch (0.6 cm) per foot (0.3 m) and the minimum total thickness at the drains was 6 inches (15.2 cm). "We would have to cut and miter all the corners, make everything perfect so that all the water flowed, and there was no ponding after we were finished," he continued. With a plan in hand, the crew went from flat 2-inch (5.1 cm) boards to flat 1-inch (2.5 cm) boards, using various pieces labeled precisely with different letters. "It's time consuming and complicated because when you lay your panels out, you have to mark them, set them, cut them in half on an angle, and then the opposing panel, you'd cut that in on an angle, and then they would slide together, so you would get your proper taper on the fit because you couldn't leave more than ⅛-inch [0.3 cm] gap between the panels." e goal was to get it smooth. Once the layer of iso was done, the crew used SPF again to attach the ½-inch (1.3 cm) high-density boards. A lthough there were no crazy cutting and patterns required for that stage, Foam Tight still had a strategy: "It was less complicated, but what you do is start one full panel, and then the next row, you would start a half panel, and then full panel, half panel," Betts said. ey staggered the joints on that layer to avoid weak areas, according to Betts. e crew was also sure to install a protective layer of primer on top of the double base of boards. at was a single-compo- nent urethane primer by Oak Ridge applied at 250 square feet (23.2 m²) per gallon (3.8 L), which they applied using spray equipment by Titan. en it was on to the SPF. ey used 310 feet (94.5 m) of hose tied to the side of the building for safety and a brand new Polyurethane Machinery Corp. (PMC) 40 spray machine to apply the foam. at layer was of 3-pound (1.4 kg) SPF from Oak Ridge Coating & Foam Systems called ORFF (Friendly Foam). ey also used North respirators, Ty vek suits, and the other mandatory personal protective equipment (PPE) while spraying. e crew then grabbed an AP2 gun with a #1 chamber to The crew used a detailed map, metal fasteners, and SPF adhesive to install the boards before being primed. The crew then installed 2 inches (5.1 cm) of SPF. And the entire project took two installments. The crew topped the tapered system with polyurea at 90–120 mils (2,286.0–3,048.0 microns). The total project, which covered 20,000 square feet (1,858.1 m²), was completed in sections and covered in tarps when it rained. Coated SPF Roof VENDOR TEAM ABC Supply Co., Inc. Engineering services 1 ABC Pkwy. Beloit, WI 53511 (800) 577-1222 Graco Inc. Equipment manufacturer 88 11th Ave. NE Minneapolis, MN 55413 (612) 623-6000 North by Honeywell Safety Products Safety equipment manufacturer 900 Douglas Pike Smithfield, RI 02917 (800) 430-5490 Oak Ridge Coating & Foam Systems, Inc. Coatings and SPF manufacturer 575 Commercial Ave. Green Lake, WI 54941 (800) 625-9577 Polyurethane Machinery Corp. Equipment manufacturer One Komo Dr. Lakewood, NJ 08701 (732) 415-4400 Titan Tools Equipment manufacturer 1770 Fernbrook Lane Plymouth, MN 55447 (800) 526-5362 Tyvek by DuPont Safety equipment manufacturer 5401 Jefferson Davis Hwy. Richmond, VA 23234 (800) 931-3456 United Rentals Equipment supplier 100 First Stamford Pl. Ste. 700 Stamford, CT 06902 (203) 622-3131

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