首先是流水面，即房屋的洗手間和廚房，因這兩個部位常年有流水或經常潮濕，（屋頂）防水天然極其重要，萬萬不要掉以輕心。
The first is the water surface, which houses the Restroom and kitchen, because these two parts of perennial water or often wet, extremely important waterproof nature, don't let down.
其次是外露面，如陽臺、天臺、露臺等，因其裸露在戶外，長時間遭受雨水的侵蝕，亦必須進行有用的（屋頂）防水處理。
Followed by external appearances, such as balcony, terrace, roof, etc., because of its exposure to the outdoors, long suffering from erosion of rain, it is necessary to carry out effective water treatment.
再次是防潮面，通常指房屋的地面和墻面。房屋裝修時墻體一樣平常沒有干透，肯定含有水分（建網站費用），且常有新砌墻或新鋪水泥沙漿，若不做屋頂防水，水分就會往外蒸發，引起變色、起殼脫落和發霉等題目。分外是木地板、木質墻線和門框等木料部分，一旦滲入水分（建網站多少錢），就會因潮而變色、發霉、生蟲，直至無法使用。
Once again, it is a damp surface, usually referring to the floor and walls of a house. When the building is decorated wall is generally not dry, with water, and often new walls or new cement mortar, if not waterproof, water will evaporate into the shell, causing discoloration, shedding and mildew problems. In particular, wood floors, wooden walls and door frames, such as wood, once the infiltration of water, it will be because of the tide and discoloration, mildew, insects, until it can not be used.
還有一個大家容易忽視但又須分外提示的是背水面（屋頂）防水，這重要是針對靠近建筑外墻的單元的用戶。假如建筑商外墻面（屋頂）防水處理不到位，因長時間雨水沖刷，水分漸漸滲入居室的內墻面，若不做（屋頂）防水層阻隔，內墻墻紙、涂料等裝飾材料就會遭殃。
There is an easy to ignore but must be reminded that the back surface of the water, which is mainly aimed at the building near the external walls of the unit users. If the building outer wall waterproofing treatment is not in place for a long time, the rain, the water gradually infiltrated into the inner wall of the living room, if not waterproof barrier layer, inner wall wallpaper, paint and other decorative materials will suffer.
