“Patchwork”, Living City Challenge Entry
The sustainability rating systems–Passive House, Living Building Challenge, and Net Zero (a subset of the Challenge)–appear in isolated, new construction projects. The promise and perversity of trying to pick out sustainability targets, building by building, within a tightly woven urban fabric can be examined in Philadelphia.
Charlie Miller, P.E., has been fomenting a quiet, green roof revolution in this country for years. So quiet that you may not have heard of it, or him.
It’s a steep climb up narrow, carpeted stairs to the modest Roofmeadow office on historic, cobble-s…