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Established in 1925, the University of Miami is a private research university in Coral Gables, Florida. In keeping with their vision to become an exemplary and excellent institution, it’s embarking on a multi-phase student housing expansion plan. Phase 1 is the 12-acre Lakeside Village Student Community Housing comprised of 25 interconnected greenroofed buildings and a multitude of outdoor spaces including a grand courtyard, study spots, recreational spaces and outdoor terraces. Designed by Arquitectonica with landscape architecture by ArquitectonicaGEO, the residential cubes are arranged into a necklace of forms crowned with greenroofs strung together to produce a single undulating structure. With its location on a sensitive coastal watershed in a hurricane zone, the design demonstrates some of the best aspects of environmental sustainability in the built environment, as well as some of the most challenging scenarios.
The new buildings include passive solar cooling, rain gardens, and a LEED Gold certification pending. Best of all, each roof is covered in vegetation – the first of their kind in Miami. The unique challenges of these many green roofs include their steep slopes and their location right in the center of a hurricane super-highway.
25 separate Henry-GRO semi-intensive green roofs range in size from 3,259 to 627 square feet each; 7 have decks with a 4/12 slope and the rest have 3/12 slope. Each is sloped in a different direction and on a diagonal. A GRO Capillary Action Mat was used directly over the Henry 790-11 waterproofing to resist sliding while also preventing root intrusion and facilitating the lateral flow of stormwater toward the internal drains. To address slope and wind concerns, a GRO Slope Stabilization System and a wind erosion mat were installed on top of the growth media. After an extensive review, Miami-Dade gave Notice of Approval to the Henry-GRO system in February 2019, deemed more than capable of withstanding a Category 5 hurricane. Completed in November 2019, the Vegetated Roofing Assemblies were then hydro-seeded with Bahia Grass and planted with Blood Flower, Autumn Blush Tickseed, Scarlet Sage, and Native Porter. The architecture traverses sky and ground, at once ethereally floating and connected to the ground. The University of Miami Lakeside Village Student Community Housing is a major breakthrough for green infrastructure in Miami, and hopefully these will be the first of many green roofs in the city.
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Greenroofs.com Featured Project 1/14/20 video courtesy of Henry Company and photo credits courtesy of Arquitectonica, ArquitectonicaGEO, and Henry Company.