RAISING THE BAR ON GREEN ROOF DESIGN

摘要

In keeping with a rising tide of green roof design and construction across the country, the American Society of Landscape Architects (ASLA) has recently completed an innovative example of vegetated rooftop at its national headquarters in Washington, D.C. Unlike many conventional green roofs that clothe a building's existing profile with the requisite structure, soil, and plants, Michael Van Valkenburgh Associates took the green roof standard a step farther by redefining the three-dimensional character of the space.