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Project profile: Twin Dolphin condominiums in Florida

Project profile: Twin Dolphin condominiums in Florida
May 30, 2025 at 9:00 a.m.

By Duro-Last.

Meet the winning project of Duro-Last's 2024 Custom-Fabrication Award!

Kelly Roofing in Naples, Florida has been serving their community since the 1970s. As one of the largest roofing companies in the state, they continually strive to improve their craftsmanship. Last year, they took on a unique challenge in the form of the Twin Dolphins condominiums. These are luxury waterfront properties nestled between the Isles of Capri near Marco Island, Florida.  

Years of exposure to Florida’s unique climate and weather conditions led to the deterioration of the condominium’s modified bitumen system. When Kelly Roofing got there, the 30,700-square-foot roof was experiencing consistency leaks. The solution was to create a long-lasting, dependable out of Duro-Last materials.  

The project began with a complete tear-off of the existing modified bitumen roof system, which revealed improperly attached insulation that exacerbated water pooling. The roof’s post-tension concrete deck prohibited mechanical fastening, requiring a specialized approach. Collaborating with Duro-Last’s engineering services team, Kelly Roofing conducted pull tests to determine the optimal fully adhered system for the project. “Duro-Last’s engineering support was invaluable in designing a system that fit the unique challenges of this building,” said Joe Kelly, vice president of sales at Kelly Roofing.

After removing approximately 12 inches of old insulation, Duro-Guard EPS tapered insulation — designed in conjunction with Duro-Last engineering services — was installed to improve water flow to drains. The membrane installation featured custom-cut Duro-Last X 50 mil roll goods and custom-fabricated Duro-Last 50 mil deck sheets, which extended seamlessly up the parapet walls for complete coverage. Additional components included custom-fabricated curbs and pitch pans, Duro-Flash II, and fascia bars for termination, as well as ROOF-TRAK III Walkway Pads. “This roof had numerous AC units and penetrations,” said Gualberto Perez, project supervisor. “The custom membrane and accessories made installation much easier for our crew and significantly reduced the chance of leaks.”

The project logistics were demanding, with the height of the 15-story building adding to the complexity of the installation. All debris and materials had to be transported via crane, ensuring safe and efficient handling of the components. Kelly Roofing’s experienced 10-person crew worked for three months to complete the project, navigating Florida’s heat and challenging rooftop conditions. “The team’s precision and dedication were key to overcoming the complexities of this job,” Gualberto said.

Duro-Last’s quality assurance team conducted a comprehensive final inspection before issuing a 20-Year NDL Warranty. “Our tech rep reviewed every weld and detail,” said Gabby Galarza, project administrator for Kelly Roofing. “He ensured the roof was perfect and we received valuable feedback that helps us maintain our high standards.”  

The finished system not only addressed all prior leak and drainage issues but also enhanced the property’s durability and energy efficiency. “This roof was built to last,” Gualberto said. “It’s a system that will serve the building and its residents for decades.”

See the incredible project for yourself in this video from Duro-Last.

Learn more about Duro-Last® in their Coffee Shop Directory or visit duro-last.com.



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