住宅地基周边排水坡度怎么做

住宅地基周边排水坡度,很多人等地下室潮了才回头看。新房做完 grading 后,土回填会慢慢沉,如果靠墙那一圈变成反坡,雨水就贴着 foundation 走。短期看不一定漏,时间长了墙根发潮、sump pump 老启动,后面再处理就麻烦。 我一般会先看落水管出水点,downspout 不能直接吐在墙边,至少要往外带一段。靠房子两三米内,表面坡度要往外走,低洼位置不要被 mulch 或花坛挡住。做 driveway、patio、walkway 的时候也要一起看,不然硬化地面把水导回房子。 还有一点是空调外机、台阶和后院小路,很多后加的东西会把原来坡度改掉。交房前如果只看干天,问题不明显。你们住宅项目做完外场前,会不会专门下雨后复查一次排水走向?

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