CoatingsPro Magazine

MAR 2017

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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COATINGSPRO MARCH 2017 41 We Have Lift-Off! In August, the crew was able to get down to business. Wearing industrial nitrile gloves, Uvex polarized safety glasses from Honeywell Safety, Ty vek protective suits, and harnesses and utilizing fall arrest systems from DBI SALA by Capital Safety, the crew worked in phases, beginning at the top of the building and slowly progressing downward. H&E Equipment Services supplied Genie lift equipment, while BETCO Scaffolding furnished swing stages. Both were essential in accessing the entirety of the 14-story building. "We had to have special rigging equipment to access all of the wall," Watson explained. "ere was very difficult rigging because of how the building jutted out and curved in, especially with some of the balconies." e potential safety issues from working at extreme heights were also mitigated by the experience of the crew, which used heav y-duty two-way radios from Motorola to remain in constant communication. JOB AT A GLANCE PROJECT: Waterproofed the building envelope — on the exterior and windows — at a marquee Houston waterfront hotel COATINGS CONTRACTOR: Surmac, Inc. 17332 Bell North Dr. Schertz, TX 78154 (210) 227-7443 www.surmacinc.com SIZE OF CONTRACTOR: 20 employees SIZE OF CREW: 10 crew members PRIME CLIENT: Hilton Houston NASA Clear Lake Hotel 3000 NASA Rd. 1 Houston, TX 77058 (281) 333-9300 www3.hilton.com SUBSTRATE: Precast concrete CONDITION OF SUBSTRATE: Exposed to years of waterfront conditions; coating deteriorated, leaking SIZE OF JOB: 175,000 sq. ft. (16,258.0 m²) total DURATION: 3 months UNUSUAL FACTORS/CHALLENGES: » High winds, frequent unexpected storms, high temperatures, and humidity added challenges to the coating application. » The work had to be completed very quietly and with as little invasive- ness as possible, with part of job delayed until off-peak season. » The crew captured cleaning water and recirculated it when possible. MATERIALS/PROCESSES: » Cleaned surfaces using Mi-T-M 4,000 psi (27.6 MPa) pressure washers and Mosmatic rotary vacuum-assisted cleaning heads attached to Crusader wet vacuums » Brush and roller applied two coats of StrucSureCoat elastomeric wall coating at approximately 10 mils (254.0 microns) wet film thickness (WFT) each » Wet glazed windows with Dow Corning's 795 silicone building sealant, and resealed all vertical and horizontal caulk joints on the precast with Tremco's Dymonic 100 sealant » Conducted tests using thermal imaging cameras SAFETY CONSIDERATIONS: » Used furnished harnesses and fall arrest systems » Used furnished swing stages supplied by Betco Scaffolding and Genie lift equipment provided by H&E Equipment Services to access all of 14-story hotel » Wore industrial nitrile gloves, Uvex polarized safety glasses from Honeywell Safety, and Tyvek protective suits » Utilized heavy-duty two-way radios from Motorola for communications Once done pressure washing the precast concrete, the crew brush and roller applied two coats of StrucSureCoat elastomeric wall coating at approximately 10 mils (254.0 microns) wet film thickness (WFT) each. Because this is a luxury hotel in a popular area, the crew worked to have as little disruption to guests as possible. This meant working during off-peak season on the coating and glazing project.

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