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房屋的耐久性随物理性能,功能因素和经济性质而定。房屋在使用过程中,构成房屋的多种建筑材料随物理变化、化学变化和生物的作用,逐渐被腐蚀;但因各种材料的性质不同,所处的部门和使用条件不同,其耐久性也不相同。因此,对房屋进行鉴定时,当从材料的腐蚀原因和各种材料所受的影响,来分别计算材料的耐久年限,从而计算建筑物的耐久年限。
The durability of a house depends on physical, functional, and economic properties. In the course of use of the house, the various building materials that make up the house are gradually corroded by physical changes, chemical changes, and biological effects. However, due to the different nature of various materials, the department and the conditions of use are different, and its durability is also different. Are not the same. Therefore, when appraising the house, calculate the endurance period of the material from the cause of the corrosion of the material and the influence of various materials, and calculate the endurance period of the building.