PROBLEM TO BE SOLVED: To provide pest-proof functional water cultivable without any use of pesticides, capable of suppressing deterioration of a structure exposed to weather, elongating a service life, and further preventing an accident caused by deterioration.SOLUTION: Ceramic is installed at an interval of about 5 meters on an upper part of a structure, and thereby rainwater or the like pouring down to the periphery of the ceramic is changed into highly functional water having a cleaning/rust-proofing function or the like without having a direct contact with the ceramic. Further, ceramic is installed on an upper part of a vegetable, and thereby rainwater or the like is changed into highly functional water capable of accelerating growth of the vegetable.SELECTED DRAWING: NoneCOPYRIGHT: (C)2017,JPO&INPIT【課題】風雨にさらされる構造物の劣化を抑制し、耐用年数を長くし、合わせて劣化による事故を防止、また病害虫に強く、無農薬で栽培可能な機能水を提供する。【解決手段】構造物の上部に約5メートルの間隔でセラミックを取り付けることにより、セラミック周辺に降り注ぐ雨等を前記セラミックの直接触れることなく、洗浄・防錆等の機能を持つ高機能水に変化させ、あるいは植物の上部に前記セラミックを取り付けることにより・植物の生長促進する高機能水に変化させる。【選択図】なし