一要做找平層。首先，要用水泥砂漿將地面做平(分外是重新做裝修的房子)，然后再做屋頂防水處理。如許可以避免屋頂防水涂料因薄厚不均或刺穿屋頂防水卷材而造成滲漏。
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.
二要做好重點部位。墻體與地面之間的接縫以及上下水管道與地面的接縫處，是最容易出現問題的地方。所以這些部位肯定要格外細致，處理肯定要過細，不能有點滴的馬虎。
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。
三要墻面也要做屋頂防水。為了達到較好的屋頂防水結果，一遍衛生間的墻面上也要做大約30cm高的防水處理，防止積水滲透墻面。與浴缸相鄰的墻面，防水處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.
四要做屋頂防水實驗。防水施工完畢后，要將衛生間的所有下水道堵住，在衛生間的門口砌一道“矮墻”進行注水試驗，注水高度在20cm左右。24小時后檢查，若衛生間的周圍墻面和地面沒有滲漏情況，說明衛生間的防水質量很好。反之，要找出漏點，進行維修。
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.
