1. Design factors

防水处理没有做好，一旦防水设计出现问题，将直接造成房屋建筑外墙的渗漏。

Waterproof treatment is not done well, once the waterproof design problems, will directly lead to leakage of building exterior wall.

2、材料因素

2, material factors

建筑材料，可能存在孔隙率大、吸水性强和抗渗透能力差的特点。如果遇到为了省钱的开发商，可能会碰到这种情况。

Building materials may have the characteristics of large porosity, strong water absorption and poor impermeability. If you meet developers who want to save money, you may encounter this situation.

3、施工因素

3, construction factors

施工因素造成的房屋建筑的外墙渗漏问题较多，可能是框架结构不稳定，或者建筑墙体没有按照标准配浆，也可能是墙面外墙墙面砖跟打底的砂浆之间存在粘结力不足，以及各种管线的穿孔、窗台的坡度等问题。

Many problems of exterior wall leakage of housing construction factors, may be the frame structure is not stable, or not in accordance with the standard of building wall slurry, may also be the wall between the external wall brick with bottom mortar bond strength is insufficient, and all kinds of pipeline perforation, window slope etc..

漏水是很多原因造成的！

Leakage is caused by many reasons!

其实市场上不免会存在一些防水材料本来质量问题，一定要选择好正规品牌出厂的产品，然后在保证好整个工程的质量问题。所以事情的发生都是相辅相成的，不能一漏水就怪防水产品不好！

In fact, there will inevitably be some waterproof material quality problems in the market, we must choose a good brand of factory products, and then ensure the quality of the whole project. Therefore, the occurrence of things are complementary, can not be a leak, blame waterproof products is not good!