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卷材屋面采用排气法施工,在我国已有近20年的历史了。它对保证工程质量,如减少卷材防水层起鼓和防止油毡开裂,加快进度和节约材料等,都具有明显的技术经济效果,适用于潮湿多雨的南方地区。为了更好地推广,现就以下几个问题谈一些不成熟的看法,供研究参考。一、关于耐久年限排气屋面在铺贴第一层卷材时,采用半铺、花铺、条铺等方法,使卷材与基层部分脱开,利用其中空隙作为排气道。排气道要纵横贯通,与大气相连,在一定部位上留置排气孔,以利潮气排出。由于第一层卷材铺贴
The roof of coiled material is constructed by exhaust method and has been in our country for nearly 20 years. It has obvious technical and economical effects on guaranteeing project quality, such as reducing the drum waterproofing layer and preventing the cracking of the felt, accelerating the progress and saving materials, and is applicable to the wet and rainy southern regions. In order to better promote, we now discuss some of the following issues on the immature perspectives for research reference. First, on the endurable period of exhaust roof In paving the first layer of the membrane, the use of semi-shop, flower shop, bar shop and other methods, so that the membrane and the grass-roots part of the disengagement, the use of the gap as an exhaust. The exhaust passage must be vertically and horizontally connected to the atmosphere, and a vent hole must be left on a certain part to facilitate the drainage of moisture. Due to the first floor roll