According to ICOMOS 'International Charter for the Conservation and Restoration of Monuments and Sites (aka the Vienna Charter), world cultural assets must pass an authenticity test for design, materials, and workmanship, in order to prevent confusion between copies and the real thing. But this kind of standard is not entirely suitable for the wooden structures typical in Asian countries.
必要替換的部份，不僅要有完整的記錄，新舊部份也要讓人區分得出來。根據世界遺產古蹟與歷史場所保存修護憲章，也就是威尼斯憲章明文指出：世界文化遺產的設計、建材、工藝場景都必須通過真實性的檢測，以免世人模擬復健，魚目混珠。