roof top greenhouse projects. the city of sydney is on a green crusade one policy in development will encourage roof gardens, which can reduce the energy required for aircon by about 30 . vienna\u0027s \u0027greening facades and roofs\u0027 initiative shows that planting on urban surfaces helps regulate the temperature inside houses, as well as improve the . it also features optimized laboratory ventilation, energy-efficient chilled beams, and two green roofs phase 2 will provide an additional 70,000 sf of . plant connection, inc – ny – 23 story atrium living wall – green plants for green buildings. ekouin nenbutsudo tokyo temple by yutaka kawahara green facadegreen roofsgreen . barclays center to be topped with massive green roof.