Orlando World Center Marriott Resort, Orlando, Fla.
TEAM: Architect: Building Consultants Ltd., Arlington Heights, Ill., www.building-consultants.com // Roofing Contractor: Nations Roof South LLC, Lithia Springs, Ga., www.nationsroof.com // Distributor: Commercial Roofing Specialties, Inc., College Park, Ga., www.crssupply.com // Roofing Manufacturer: Petersen Aluminum Corp., Elk Grove Village, Ill., www.pac-clad.com (25,000 quare feet of 24-guage, 12-inch-wide SNAP-CLAD panels // 20,000 quare feet of flat stock for flashings, trim, gutter, downspouts and coping // Penels were finished with PAC-CLAD KYNAR 500 in forest green)
This project, which was the final phase of a four-year renovation, involved total replacement of 21-year-old standing-seam metal roofing that had weathered various tropical storms and hurricanes. PAC-CLAD material was used to replace roofs on three key structures at this world- class resort: the 22-pod Mikado Japanese Steak House, Hawk’s Landing Steak House and the golf pro shop.
Petersen Aluminum Corp.’s PAC-CLAD material was selected because of the availability of stock PAC-CLAD steel coil in a forest-green color to match existing roofs on the property. The SNAP-CLAD panel system also has Florida Product Approval and Miami-Dade Approval. Installation was challenging because of limited lay-down space and continued operation of the 2,000-room resort. Petersen Aluminum fabricated the SNAP-CLAD panels while Nations Roof South utilized a 53-foot portable roll former to fabricate all trim, gutters, downspouts and coping.
Merryvale Winery, St. Helena, Calif.
TEAM: Owner: Jack W. and Rene Schlatter, Merryvale Winery, St. Helena, Calif., www.merryvale.com // Installer: AlCal Arcade Contracting Inc., www.alcalarcade.com // Manufacturer: HIGH-R, Ames, Iowa, www.high-r.com
For most people, 55 degrees is a little on the cool side. But for wineries, it’s ideal. The owners of Merryvale Winery in the Napa Valley community of St. Helena, Calif., and Tassel Ridge Winery in Leighton, Iowa, installed an insulation system in their wine-making rooms to ensure their product is made at just the right temperature.
“We age the wine under cave-like conditions, so we need it to stay pretty cold,” said Merryvale winemaker Graham Wehmeier. The wine-making room is also kept humid to facilitate the aging process.
Unlike traditional insulation methods where sheets of urethane are installed between trusses just below the decking of a metal building roof, the wineries used a product that is mounted on the purlins at the base of the trusses. The cavity between the purlins and the decking are then filled with blown fiberglass insulation, allowing for R-40 or greater insulation. The system results in consistent interior temperatures and low heating and cooling costs. The Merryvale Winery used just such a system from HIGH-R which could easily be retrofitted to the existing building.
Dos Perros, Durham, N.C.
TEAM: Building Owner: Greenfire Development, Durham, N.C., www.greenfiredevelopment.com // General Contractor: Harris Construction Services, Clayton, N.C., www.harrisconstructionservices.com // Architect: Tise-Kiester Architects PA, Chapel Hill, N.C., www.tisekiester.com
Thanks to an effort by Greenfire Development to renovate a historic trio of buildings called Rogers Alley, the area has been reborn for its new tenants. Dos Perros, a restaurant that serves authentic, refined Mexican cuisine, occupies a space once held by a pharmacy that served downtown Durham for more than 60 years.
Materials preserved or restored in the retrofit included original masonry in the structural walls, the heart pine from the pharmacy’s lobby floor and grand staircase, original tin ceilings and many of the original windows.
Typically, certain challenges present themselves in historic retrofits. For instance, once the interior demolition occurred, it was discovered some building spans did not meet current building code and some structural wood was charred or rotting. Among the unique results of the retrofit is that Rogers Alley has standing-column geothermal wells. The three wells measure 8 to 10 inches in diameter and act as a central heating and cooling system that pumps heat to or from the ground. It uses the earth as a heat source in the winter or a heat sink in the summer. This design takes advantage of the moderate temperatures in the ground to boost efficiency and reduce the operational costs of heating and cooling systems.
The restaurant occupies the basement and a portion of the renovated first floor of the 100-year-old building. The wall behind the bar was at one time an exterior wall, and the words “family owned” still can be seen.
Charlie Deal, Dos Perros’ owner and chef, thought the aesthetic impact of the retrofit was noticeable. The massive exposed timbers on the first floor add texture to the dining area and would be prohibitively expensive to use had the restaurateur decided to build a new structure rather than use a retrofitted one. “There was an original pressed tin roof that was for decades covered by a drop ceiling,” he says. “Not a night goes by I don’t hear someone comment on the beautiful ceiling.”