一、关于屋面漏雨问题 1.屋面漏雨的原因 (1)隔热层中的炉渣、蛭石、珍珠岩和泡沫混凝土等材料因受潮而含水量大,是造成屋面防水层起鼓的主要原因,过多的水蒸气被复在卷材防水层下,无法排除导致面层鼓包。 (2)沥青铺刷厚度不一致或漏刷,引起脱层;基层表面不洁或潮湿,油毡上的滑石粉或云母片未清扫干净,形成隔离层。 (3)油毡搭接宽度不合要求。边角铺得不严或漏铺。油毡质量不佳、存放时间过长或堆放受压变形造成开裂脆化。 (4)沥青溶化温度不适宜,加热时温度低,沥青粘度大,不易铺刷;超过加热温度 First, on the roof leakage problem 1. Causes of roof leakage (1) In the heat insulation layer of slag, vermiculite, perlite and foam concrete and other materials due to moisture and moisture, is caused by the main waterproof layer from the drum The reason is that too much water vapor is trapped under the waterproofing layer of the coil and it cannot be ruled out that the surface layer bulges. (2) Inconsistent asphalt coating thickness or leakage brushing cause delamination; the surface of the base layer is unclean or wet, and the talc or mica sheet on the linoleum is not cleaned to form a barrier layer. (3) The felt lap width is not satisfactory. The corners are poorly laid or missing. The quality of the linoleum is poor, the storage time is too long, or the stack is compressed and deformed to cause cracking and embrittlement. (4) Asphalt melting temperature is not suitable, the temperature is low when heating, the viscosity of asphalt is large, it is not easy to spread the brush; over the heating temperature