GREEN ROOFS SEATTLE INSTALL
These companies would install gardens and green spaces on top of city roofs, including all of the necessary soil and plants, and they would also introduce pollinators into these new habitats. These buildings will be subject to the mandate, while buildings which may not be able to support Greenroofs will be exempt.Īs to the implementation of green spaces on roofs, we propose that the government hires private contractors to complete the work. The results of these studies will dictate which buildings can safely support Greenroofs. If you’re interested in seeing Seattle’s public green roofs, the city has put together a self-guided tour found here (.Determining which Buildings are Subject to the Mandate:īefore Greenroofs can be installed, a standard ASTM E2397 structural analysis of all roofs in Seattle must be conducted by engineers, architects and surveyors. “I think we’re going to see in the future that green roofs are essentially the smart, best practices for the way to go.” In fact, half of new commercial developments in the city are designed with planted rooftops. Moving forward, Councilman O’Brien hopes that green roofs become the norm for new developments just as getting LEED certified has become.
“Going into 2011 we’re looking at incorporating green roof incentives in that RainWise program,” Dave Laclergue with the Department of Planning and Development tells us. If it makes financial sense for the city, RainWise may incorporate green roofs as early as next year. “Green roofs, we think, can get us that two to four hour delay on the peak stormwater flow,” Joel Banslaben, a Senior Sustainable Strategy Specialist for Seattle Public Utilities says, “Which will allow the system to recover from that initial flush of the system and then slowly release it into once the treatment plants have the capacity to absorb some of that.” The city is currently testing this theory at five sites, including the Ballard Library.Įarlier this year, Seattle Public Utilities rolled out the RainWise incentive program for parts of Ballard, in which the city will pay for rain gardens or cisterns on private property. The city is working on ways to reduce the amount of rain water that enters into the city’s pipes at the same time. One of the benefits of the green rooftop is it is believed to slow stormwater runoff. “In the summer, they think about half the greens are produced on site in a space that was formerly just, essentially, soaking up heat from the sun,” Councilman O’Brien says, “Now it’s producing something productive and adding a myriad of benefits.” “It works for them as a business model,” Seattle City Councilman Mike O’Brien says, “You can’t get spinach salad much fresher than something that was picked moments ago on the roof of the building and transported by staircase down to your salad.” But enjoying a fresh salad isn’t necessarily the purpose of a green roof.
GREEN ROOFS SEATTLE FULL
NW), the Ballard Library (5614 22nd Ave NW) and the Re-Store bike shed (1440 NW 52nd St).īastille boasts planter boxes full of greens, herbs and tomatoes for the meals they serve. Three of those buildings are in Ballard – Bastille Cafe and Bar (5307 Ballard Ave. The city of Seattle has nearly 360,000 square feet of rooftop gardens on 62 public and private buildings, according to a new report (.pdf) just released by the city.
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