Liberty Property – Richmond, VA
Liberty Property’s existing 141,000-square-foot built-up roof (BUR) had outlived its usefulness. Over the years, it developed multiple leaks, which damaged parts of the roof’s structure. The roof was beyond the patching or recoating stage, the insulation was compromised in spots, and long-term exposure to water resulted in some damage to the roof deck. Liberty wanted a new top-quality roof system with an affordable price tag.
Because Liberty’s facility houses business tenants, the company wanted an energy efficient roof that would reduce the costs of heating and cooling the building, while giving the tenants a comfortable work environment. During a detailed inspection, North American Roofing determined the need for partial deck replacement in areas where the metal roof deck had rusted through. Areas with only surface rust were singled out for rust remediation. The entire built-up roof system was to be torn off and replaced with high R-Value insulation, followed by the installation of a cool roof.
For the Liberty facility, North American Roofing recommended the RhinoBond mechanical attachment system. After attaching the roof’s insulation layer with specially coated plates, the membrane was installed. A special RhinoBond induction-welding tool was positioned on top of the membrane where it electromagnetically seals the underside of the membrane to the coated plates. The RhinoBond fastening system features a grid pattern which eliminates mechanical fastening in the seams and distributes wind uplift resistance load over a larger area of the roof. The denser the grid pattern, the greater the wind resistance factor.
Tear off commenced January 23, 2012. North American Roofing made provisions for Liberty’s business tenants to continue their day to day operations during the project. The entire built-up roof was removed and disposed of. All metal copings, roof edges, and guttering were removed. The damaged parts of the metal decking were replaced with new decking. On other areas, superficial rust was removed and the metal was treated with rust inhibitor.
After securing the deck, North American Roofing installed 3.2-inch isocyanurate (ISO) foam board insulation with RhinoBond plates to meet FM 1-90 wind uplift specifications. A 60-mil PVC membrane, manufactured by Sika Sarnafil, was installed over the ISO, using the RhinoBond heat-welding tool to seal the membrane. New metal copings, roof edges, and new gutters were installed.
During the entire project, which was completed under schedule in less than 60 days, tenant and worker safety was ensured through strict adherence to OSHA regulations.
Liberty received a new cool roof with white reflectivity, beefed-up insulation for optimal energy efficiency, and a 20-year warranty. Roofing specialist Mary Leiter reinforced North American Roofing’s commitment to the use of cutting-edge technology to offer its customers the best roofing system for their investment dollar. “We’re extremely confident in the RhinoBond system,” Leiter said. “It offers a superior mechanical attachment system at an affordable cost. A true win-win for all parties involved in the project.”
The roof of the Skokie Fashion Mall was in bad shape. Leaks were becoming more and more numerous, and for a retail outlet this isn’t acceptable for very long. An inspection of the roof showed that water was penetrating the membrane and had completely soaked the insulation.
The existing assembly was an R-Panel roof with spray foam insulation on the underside of the deck. The customer wanted R-Value but did not want it on the underside of the deck because of the environment inside. The process of forging metal had deteriorated the insulation as well as the metal R-Panel decking.
The existing EPDM roof on this facility had deteriorated beyond repair, and the budget wouldn’t allow for a total roof replacement. With that in mind, North American Roofing recommended installing a new TPO assembly over the existing EPDM. Not only would the roof leaks stop, but the switch from black EPDM to white TPO would provide significant energy savings over the lifecycle of the new roof.
Mitsubishi Heavy Industries knew the roof system on their facility in Franklin, Indiana was in bad shape. When it was determined that the 118,759-square-foot roof needed to be replaced, North American Roofing knew it was important to specify and install a durable roofing system due to the heavy amount of foot traffic that was partially responsible for the roof’s premature deterioration in the first place. It was also imperative that the new roofing system be Factory Mutual approved, and white, per Mitsubishi’s requirements.
Wilson Warehouse – Baton Rouge, LA
A 197,539 square foot warehouse in Baton Rouge, Louisiana. The roof was replaced with a TPO membrane and received a “Perfect 10” inspection rating from the manufacturer.
Sterigentics was facing the typical problem facilities have when their roofs are 25 years old, leaks. A lot of the flashing around the HVAC units and skylights had deteriorated and was letting water underneath the membrane. After inspecting the existing insulation, we determined not all the insulation was damaged or wet so we were able to salvage most of it, reducing the overall cost of the project.
After 20 years, the ballasted EPDM roof on the HealthSouth Rehabilitation Hospital in Arlington, Texas was nearing the end of its useful life. Energy costs were a major concern and it was obvious the new system needed to be reflective. HealthSouth Corporation chose North American Roofing to replace the old roof, based on our reputation, our experience and our competitive price.