At a net-zero home in San Francisco, the house's green roof is more of a brown roof: a desert-like array of native and non-native succulents that require minimal irrigation. The soil area is maintained with motorcycle tires (including one from a Harley hog), which control erosion. Composting takes place here as well.  Search “�댄넗�쇱<�뚣�륚V1004.NET�묅솯 臾쇱궗�μ삁�� 諛랁궎�톞witter 異섏옄�룹궗�댄듃 臾쇱궗�μ젒�띿삤瑜�” from This Net-Zero Residence Might Be the Greenest Home in San Francisco

Search “�댄넗�쇱<�뚣�륚V1004.NET�묅솯 臾쇱궗�μ삁�� 諛랁궎�톞witter 異섏옄�룹궗�댄듃 臾쇱궗�μ젒�띿삤瑜�”

At a net-zero home in San Francisco, the house's green roof is more of a brown roof: a desert-like array of native and non-native succulents that require minimal irrigation. The soil area is maintained with motorcycle tires (including one from a Harley hog), which control erosion. Composting takes place here as well.