| 摘要 |
PROBLEM TO BE SOLVED: To easily and appropriately execute fireproof treatment to a penetration part H of piping/wiring on a wall or a floor to be a fireproof structure in a wooden building, without damaging a fireproof property of the wall or the floor.SOLUTION: A fireproof treatment structure includes: a metallic sleeve body 3 which is provided with an outer flange 3c on the side of one cylindrical end 3a, is inserted to a through-hole Ha formed in a component of a wall W or a floor F from one side of the wall W or the floor F to a position at which the outer flange 3c is hooked, and is fixed at the outer flange 3c, and whose inside is turned to a passing space of piping/wiring P; an inner side incombustible material 4 filled between the piping/wiring P passing through the sleeve body 3 and an inner surface of the sleeve body 3; and an outer side incombustible material 5 filled between the through-hole Ha and an outer surface of the sleeve body 3. |
