一要做找平层。首先，要用水泥砂浆将地面做平(分外是重新做装修的房子)，然后再做屋顶防水处理。如许可以避免屋顶防水涂料因薄厚不均或刺穿屋顶防水卷材而造成渗漏。
To do a leveling layer. First of all, to use cement mortar will be flat (especially the re decoration of the house), and then do waterproofing treatment. This can avoid the leakage of waterproof coating caused by uneven thickness or piercing waterproofing materials.
二要做好重点部位。墙体与地面之间的接缝以及上下水管道与地面的接缝处，是最容易出现问题的地方。所以这些部位肯定要格外细致，处理肯定要过细，不能有点滴的马虎。
Two to do a good job of key parts. The joint between the wall and the ground and the joint between the upper and lower water pipes and the ground is the most prone to problems. So these parts must pay extra attention to treatment must be careful, can not have the slightest horse。
三要墙面也要做屋顶防水。为了达到较好的屋顶防水结果，一遍卫生间的墙面上也要做大约30cm高的防水处理，防止积水渗透墙面。与浴缸相邻的墙面，防水处理的高度也要比浴缸上沿高出一些。
Three to do waterproof wall. In order to achieve better waterproof effect, generally on the bathroom wall to do about 30cm high waterproof, prevent water spread through the wall. The wall adjacent to the bathtub, the height of the water treatment is also higher than the bath on the edge of the bath.
四要做屋顶防水实验。防水施工完毕后，要将卫生间的所有下水道堵住，在卫生间的门口砌一道“矮墙”进行注水试验，注水高度在20cm左右。24小时后检查，若卫生间的周围墙面和地面没有渗漏情况，说明卫生间的防水质量很好。反之，要找出漏点，进行维修。
Four to do waterproof test. Waterproof construction is completed, will all the sewer toilet block, in the bathroom door to assemble a "wall" water injection test, water injection height of about 20cm. 24 hours after the inspection, if the toilet and the surrounding walls and the ground without leakage phenomenon that the waterproof quality of the toilet is very good. On the other hand, to find the leak repair.
