| 摘要 |
PROBLEM TO BE SOLVED: To provide foundation penetration piping structure that can securely prevent intrusion of termites and can impart a sufficient stream slope to underfloor piping.SOLUTION: The foundation penetration piping structure includes a sheath pipe 2 buried in foundations 1 of a building so as to penetrate the foundations 1, insert piping 3 inserted into the sheath pipe 2, and a cover body 4 closing the gap formed at an indoor-side opening end of the sheath pipe 2 and between the insert piping 3 and the sheath pipe 2. In the foundation penetration piping structure, the gap between the sheath pipe 2 and insert piping 3 is closed with a termite-proof member 6, and a sheet-shaped termite-proof member 5 is arranged from an indoor-side surface 1a of the foundations to the cover body 4 of the sheath pipe 2 while being in close contact with them so as to cover a border part between the foundations 1 and sheath pipe 2. Intrusion of termites from the border part between the foundation 1 and the sheath pipe 2 is prevented with the sheet-shaped termite-proof member 5 in close contact with the region from the surface 1a of the foundation to the cover body 4, and the insert piping can be reduced in height at an upstream-side end, so that a sufficient stream slope is imparted to the indoor piping 7 by reducing the height of a downstream-side end of indoor piping 7 from the surface 1a of the foundations. |
