| 摘要 |
PROBLEM TO BE SOLVED: To provide a roof drain easily installed, having a waterproofing effect by means of a waterproof sheet, and ensuring high durability from an overall viewpoint. SOLUTION: The roof drain 1 is arranged on a slab A of a concrete building at a predetermined location, and functions to drain rainwater etc. on the slab A via a drain pipe B to the outside. The roof drain 1 is formed of a drain main body 2 connected to the drain pipe B, the annular waterproof sheet 3 connected to a drain port peripheral edge formed on the drain main body 2, in one body with the same, and a strainer 4 arranged on the drain port. The drain main body 2 is made of a polypropylene, and provided with an adjusting member 5 for adjusting the horizontality of the drain main body 2 by adjusting the insertion level thereof. The strainer is applicable to the drain pipe arranged between upper and lower stories, and its upper portion into which the drain pipe is inserted is formed like a slot or elliptic hole. COPYRIGHT: (C)2006,JPO&NCIPI
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