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About product and suppliers:
        Alibaba.com offers 1,156 green roof drainage board products. About 24% of these are other earthwork products, 7% are plastic sheets, and 1% are ceiling tiles. 

A wide variety of green roof drainage board options are available to you, such as free samples, paid samples. 

There are 1,156 green roof drainage board suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Vietnam, and Turkey, which supply 99%, 1%, and 1% of green roof drainage board respectively. 

Green roof drainage board products are most popular in Southeast Asia, Domestic Market, and Western Europe. 

You can ensure product safety by selecting from certified suppliers, including 1,094 with ISO9001, 558 with ISO14001, and 389 with OHSAS18001 certification.