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 “의령리얼반려돌사이트【리얼.net】ろ영덕리피스걸리뷰Ⅷ김해리피스걸수입δ본부리얼반려돌불법┷잠실힐링돌업소♡한국힐링돌불법E울진리얼돌제작Й평택힐링돌후기ⓒacritan” from This Net-Zero Residence Might Be the Greenest Home in San Francisco

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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.