一、總要求：
First, the total requirements:
1、以排為主，以防為輔。
1、mainly in order to prevent the supplement.

2、屋頂防水層須做在樓地面面層下面。
2、waterproof layer must be done in the floor below the floor surface.

3、衛間地面標高，應低于門外埠面標高，低漏標高則更低。
3、the ground elevation of the guardian, should be lower than the ground floor elevation, lower leakage elevation is lower.

二、 排水坡度要求：北京專業做屋頂防水

Two, drainage slope requirements: Beijing professional do waterproof

1、地面向地漏處排水坡度一樣平常為2%.
1, the ground floor drain to drainage slope 2%.

2、低漏處排水坡度，以地漏邊緣向外50mm，排水坡度為3-5%.
2、low drain drainage slope to drain edge outward 50mm drainage slope 3-5%.

3、地漏標高應根據門口至地漏的坡度確定，需要時設門檻。
3、 floor elevation shall be determined according to the gate to drain the slope, if necessary, set the threshold.

4、廚衛間如設有浴盆建網站費用，浴盆地面排水至地漏坡度為3-5%.
4、kitchen as a bathtub, bathtub floor drain to the floor drain slope 3-5%.

三、找平層要求：
Three, the leveling layer requirements:
1、10-20mm厚1：2.5水泥砂漿找平層，抹平壓光，套管根部抹成“八”字角建網站多少錢，寬10mm、高15mm，陰陽角抹成小圓角，收頭應光滑油滑。
1、10-20mm thick 1:2.5 cement mortar leveling layer, smooth light pressure, casing root put into "eight" angle, width 10mm, high 15mm, yin and yang angle put into small round, head should be smooth.

2、對高低不平部位或凹坑處，用1：2.5的水泥砂漿抹平。
2、the uneven parts or pits, with 1:2.5 cement mortar.