Unfortunately, I didn't get to see the end result since I had friends in town and couldn't help on the planting and last-minute touches. In any case, I've got some photos of drainage, soil, plants, personalities, and improv. supplies.
Hopefully at some point I'll get back on the roof and see how it all turned out. Come to think of it, though, I chatted with the neighbor while we were hoisting soil and she was very interested in having her roof greened. I'm going to head back on behalf of EcoBrooklyn next week and try to make her an offer she can't refuse, so perhaps I'll see the roof soon...
We had four 1.5 cu. yd. bags of Gaia Soil delievered and didn't have a crane, so Nash and I spent a full day bagging and lifting the soil onto the roof. It went off without a hitch, if you don't count my near-decapitation when the plywood/2x4 structure we used to protect the roof membrane fell three stories and landed next to my head.
Gennaro found some old drink racks and thought that they could double for these, to hold soil and plants in place on the sloped portion of the roof.
The perimeter and skylight boxes installed, ready for greenroof add-ons.
Drainage layer/water retention mat installed and ready for Gaia Soil. The layer we used is made by Colbond and incorporates a pretty impressive water retention mat. We dumped half of a 12 oz. bottle of seltzer on a 2-in. square sample and lost virtually none of it. Its drainage mesh is made from 40% post-industrial recycled polypropylene, to boot.
Nash is excited to plant. We got 20 lbs. of sedum clippings from Motherplants to encourage a mixture of species, rather than a monoculture plug-farm look.
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