| 摘要 |
PROBLEM TO BE SOLVED: To provide a roof drain suitable for construction for forming a waterproof layer by an FRP waterproof construction method. SOLUTION: A drain body 2 is made of a vinyl chloride resin superior in adhesion with an RFP waterproof layer 15, to thereby improve adhesion between a resin liquid for constituting the FRP waterproof layer 15 and a surface 3' of a collar part 3 for applying the resin liquid, and the edge 15' of the FRP waterproof layer 15 formed by the RFP waterproof construction method, can be firmly laid on the surface 3' of the collar part 3. COPYRIGHT: (C)2006,JPO&NCIPI
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