防水材料的选择
Waterproofing Materials
防水问题是多年来困扰设计、施工和业主的建筑工程质量通病，它严重影响了建筑物的正常使用。屋面防水的成功
与否，不仅是建筑物使用功能的基本要求，而且在一定程度上决定了建筑物的结构安全和使用寿命。
Construction waterproofing failures have always been one of the most common problems for architects, contractors, and project owners. Thus, roof
waterproofing success is not only a basic functional requirement but also the key to building structural safety and service life.
屋面系统防水材料的选择取决于工程类型、建筑功能、当地环境、防水等级等因素，并结合施工环境和防水材料自
身特点来制定合理的防水工程方案。对单层柔性屋面系统来说，防水卷材长期暴露，阳光、雪雨直接侵蚀，严冬酷暑温
度变化大，昼夜之间屋面板会发生伸缩，因此应选用耐候耐老化的、且具有一定延伸性的、耐冷热度变化的材料。
Roof waterproofing material selection depends on engineering type, building function, local environment, and waterproofing grade; and proposals
should be united to the material features. For Single-ply roofing systems, the waterproof membrane is always under external environmental
exposure, such as sunlight, rain, snow, hail, etc. Therefore, it is vital for the whole roof system’s success to select waterproofing membrane with
excellent weather-resistance, elongation ratings, and aging performance from summer to winter.
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