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英国最近研究出一些轻质泡沫塑料隔热层的平屋面。研究结果表明,防水层老化的主要因素是温度和湿度引起的周期性位移。在带聚苯乙烯泡沫塑料隔热层的屋顶上,小于1毫米
The United Kingdom has recently developed some flat roofs with lightweight foam insulation. The results of the study indicate that the main factor in the aging of the waterproof layer is the periodic displacement caused by temperature and humidity. On roofs with Styrofoam insulation less than 1 mm