北京地区民用建筑屋面防水基层的常规作法,通常是先做焦渣垫层找坡后,再做加气块保温层,最后抹水泥砂浆找平层。这种作法的通病是水泥砂浆找平层与加气块保温层之间粘结不理想,容易产生空鼓、裂缝、松散等现象,给屋面防水留下隐患。我们在与设计部门商量后,改变了常规作法,即先铺加 The conventional practice of building waterproof roofs for civil buildings in Beijing is usually done after the coke cushions are used to find slopes, and then the aerating block insulation layer is used, and the cement mortar leveling layer is finally wiped. The common problem of this practice is that the bonding between the cement mortar screeding layer and the aerating block insulation layer is not ideal, and hollowing, cracks, and looseness are likely to occur, leaving hidden dangers for the waterproofing of the roof. After consulting with the design department, we changed the conventional practice, that is, we first added