You've heard of do-it-yourself, or DIY. Designers Atom Cianfarani and Lori Gibbs of Green Roof Workshop have coined the phrase Green-It-Yourself to describe their affordable and accessible approach to green roof design-build.
Flavorpill.com. The work that had occurred prior to my attendance included the installation of a polyethylene root guard (Atom recommended using another product, EPDM); a recycled Geo-Textile, USA-made roof protection mat; recycled wood perimeter; an Optigreen drainage layer (resembles egg crates); a recycled Geo-Textile, USA-made drain/filter cloth; wood chips at the perimeter, and GaiaSoil enclosed in burlap sacks.
Green It Yourself Supply shop.
PLANTS Profile for Sedum for more information.) Ice plant was also planted. I was surprised by the inclusion of ice plant because it is considered invasive in California (see USDA PLANTS Weeds of California for more information). I do not know the species information for the ice plant used at 594 Broadway.
A green roof typically costs $30-50 per square foot compared to $2.70 per square foot at 594 Broadway. A brownstone in Brooklyn served as a template for this significant cost reduction. Atom believes that there will be "green roofs all over New York City if [the system] is affordable" which is why she advocates for accessible and affordable materials, not proprietary systems.
one of the best management practices encouraged by the City as part of its PlaNYC 2030 Water Quality Initiative. The monetary incentive for green roof installation is "a property tax abatement to off-set 35% of the installation cost of a green roof" (also see DDC Cool & Green Roofing Manual).
Thank you to Natasha at Flavorpill and to KIND bars, Tumeric Alive, and Beyond Kombucha for the refreshments -- it was hot on the roof!
* An extensive roof is light weight and shallow in contrast to an intensive roof which is heavy weight and deep. The roof at 594 Broadway has two inches of growing medium ad weighs 10-11 lbs/square foot at saturation.