The Washington, D.C.-based Asphalt Roofing Manufacturers Association (ARMA) showcases these hardworking but rarely celebrated systems in its annual Quality Asphalt Roofing Case- study (QARC) Awards program. Each year, the organization seeks the top asphalt roofing projects in North America that demonstrate durability and high performance, as well as beauty. The QARC awards honor a Gold, Silver and Bronze winning project that illustrates the benefits of asphalt roofing.
The Silver Winner of ARMA’s 2016 QARC Awards is a prime example of what a commercial roofing system must stand up to while remaining water-resistant and durable. Advanced Roofing Inc. (ARI), which has service areas throughout much of Florida, was hired to install two new roofs at a luxury retired-living community in Palm Beach Gardens. These reroofs were completed in 2015 and were submitted to ARMA’s awards program.
The two buildings in this community were originally built in the 1990s and were found to have numerous issues that demanded immediate attention when new management reviewed the property. The area’s hot climate requires many air-conditioning units on the roof that frequently have to be serviced. This aspect of a commercial roof can be overlooked by building owners but has a significant impact on its service life and performance. Because HVAC units and related equipment are heavy and may require frequent maintenance that brings extensive foot traffic, they can cause a roof system to deteriorate faster than normal. That was the case with the existing roofs in this living community.
Toward the end of the roofs’ service lives, temporary fixes, like patching and coatings, were made. These regular repairs only increased the operational budget while the core issues remained unresolved. According to Jessica Kornahrens, project manager at ARI, “The existing roofing system was at risk of a failure that could potentially close the building and leave its elderly residents without a home.”
ARI was hired by the new building owner and property manager to tear off the existing roofs of these two buildings and install an asphalt roofing system on each. Because of the significant durability required by the new roofs, the roofing contractor chose a high-performance three-ply modified bitumen asphalt roofing system.
“We knew that this type of redundant, multi-layered system would protect these buildings long-term despite the high foot traffic and heavy equipment they have to stand up to while also meeting the project budget,” Kornahrens says. “This particular system also has a Miami-Dade Notice of Acceptance with testing and approvals for Florida’s high-velocity hurricane zone.”
Between foot traffic and harsh weather, the contractors knew this asphalt roofing system was up to the task.
Before they could begin the project, ARI had to first stop the existing leaks in the first 45,900-square-foot building and the second 51,000-square-foot building, followed by a tear-off of the roof system down to the light- weight concrete. ARI fastened the modified anchor sheet with twin-lock fasteners directly into the lightweight insulated concrete deck and then torch applied an interply and fire-retardant granulated cap sheet.
Photos: Smith Aerial Photography