防水材料应选择单组分环保型聚氨酯涂料,这是目前建设部推荐的防水材料。由于涂料能严密地包住管道与地面,渗入缝隙,在干燥后不会收缩,因此比防水水泥等刚性材料更适合用于卫浴间这种管道、缝隙较多的小面积房屋。购买该类涂料时应选择品牌涂料,材料费约在50～60元/m2。据了解, Waterproof material should choose one-component environmentally friendly polyurethane coating, which is recommended by the Ministry of Construction waterproof material. Because the coating can tightly wrap the pipe and the ground, penetrate into the gap and do not shrink after drying, it is more suitable for small area houses with more pipelines and gaps than rigid materials such as waterproof cement. Buying such coatings should choose the brand of paint, material costs about 50 to 60 yuan / m2. It is understood,