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 “ㅴ고양오피[bam2.net]불끈밤달+ᚭ고양휴게텔+▧고양밤달+㌑고양오피+㌻고양만나놀기+ᔲ고양풀싸롱+ꇍ고양성형미녀+¨고양오피+㎎고양밤달오피+ꇑ고양입사방” 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.