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目前卷材防水屋面漏水比较多,原因是多方面的,有设计、施工、材料、管理等因素,其中油毡也确存在问题:①油毡原纸成分的质量下降,浸油率达不副要求;②沥青大量使用石腊基原油,针入度、软化点等不能全部符合标准要求;③面层油毡(500克)供货不足,现全部用350克油毡取代;④目前油毡标准GB-326对适应变形的低温柔性、延伸率没有要求。因此,要改善油毡屋面质量,提高防水效率,延长屋面防水
At present, there are many leaks in the waterproof roof of coiled materials due to many factors, such as design, construction, materials, and management. Among them, linoleum does have problems: (1) The quality of the linoleum base paper components has dropped, and the oil immersion rate has not met the secondary requirements; Asphalt uses a large amount of paraffin crude oil, the penetration, softening point, etc. can not fully meet the standard requirements; 3 top layer linoleum (500 grams) is under-supply, now all replaced with 350 grams of linoleum; 4 current linoleum standard GB-326 to adapt Deformed low temperature flexibility, elongation is not required. Therefore, we must improve the quality of linoleum roofs, increase the efficiency of waterproofing, and extend the waterproofing of roofs.