green roof at the jacob k javits convention center in new york the video, courtesy of our friends at greenroofscom, shows how the \u0027zero flor . green roofing bjc 2. green roofing bjc 3. \u201cit\u0027s . green roofing bjc 5. denver green roof initiative qualifies for ballot, would require gardens atop new buildings. native grasses were used in the pixel building green roof to help achieve green star points.