Four Seasons Energy Efficient Roofing, Inc. (FSEER) installed The Duro-Last Roofing System on the Merrick, Inc. building in Vadnais Heights, Minnesota. The project is the largest solar electric application in the state, with 525 solar panels installed that are expected to produce 130,000 kilowatts of electricity a year. Beneath the solar electric system, the building is protected by over 50,000 square feet of Duro-Last's single-ply PVC roofing system.

"Duro-Last's white membrane was the ideal system for this installation because it is solar-ready. It's easy to install, and because it's prefabricated, I can be confident that Merrick won't have to worry about leaks underneath the solar system," said Darrell Schaapveld, CEO of Four Seasons Energy Efficient Roofing, Inc.

The Duro-Last-plus-solar roofing assembly complements the buildings many other sustainable building features. Among them: a geothermal energy system under the parking lot, powered by the rooftop solar panels, will provide both heating and cooling; every room will have occupancy sensors to control electrical usage; the building will have energy-efficient insulation and windows throughout, maximizing natural light.

The Duro-Last Roofing System is an excellent sustainability choice. The white membrane's high reflectivity benefits the building in rooftop areas where sunlight is not being collected by the solar panels. Because every Duro-Last roof is factory-prefabricated, less on-site waste is produced during installation. Moreover, Duro-Last is increasingly being installed throughout the United States as the waterproofing membrane of choice for solar, vegetative, and other 'green' building applications.