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油毡屋面目前大部分采用沥青纸胎油毡,也有少数采用沥青玻璃纤维油毡或再生橡胶毡的。油毡在低温时柔性差、延伸率小,抗拉强度低,施工需热作业,工序多、劳动条件差。此类屋面常破损一点,渗漏一片,漏点难找、维修困难。一、渗漏的原因及部位 (一)开裂:裂缝分有规则、无规则两种。无规则裂缝常是找平层收缩开裂或保温层板上下错动或外力变形等引起。有规则变形的原因主要是温差引
Most of the linoleum roofs are currently made of asphalt felt linoleum, and a few are also made of bitumen fiberglass linoleum or reclaimed rubber felt. The linoleum has poor flexibility at low temperatures, low elongation, low tensile strength, and requires heat for construction, many processes, and poor working conditions. This kind of roof is often damaged a little, leakage is one, the leak is difficult to find, and maintenance is difficult. First, the causes and parts of leakage (a) cracking: cracks are divided into two rules. Irregular cracks are often caused by shrinkage cracking of the screed or displacement of the insulation plate or under external force. The main reasons for the rule deformation are temperature difference