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 “ᘆ건마정보[bam2.net]+ᒅ추천건마+㏳건마달리기+ꁑ건말이용법+㍅건마문화+㌘밤달+ⓣaa건마유흥+᚜전국건마사이트찾기+㏪건마순위+┍밤문화” 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.