1、防水是个系统工程，是工程管理学和材料工程学紧密配合的工程，忽视任何一个环节都会造成防水失败。因此要从源头把好技术关，依据防水基本原则选好防水材料，选择专业防水施工单位精心施工精心管理。
Waterproof is a systems engineering, engineering management science and materials engineering works closely with neglect any one link will cause water to fail. So off from the source to better technology, based on the basic principles of waterproof waterproof material selected, choose a professional waterproof construction unit meticulously careful construction management.
2、防水设计要根据地域环境，设计与施工环境相匹配的材料和方案。
Waterproof design to match according to the geographical environment, design and construction of environmental materials and programs.
3、防水要刚柔相济，防水层要与基层变化特性相匹配，尽量避免刚性防水层作为单独防水层。刚性防水材料作为独立的防水层用于跨度大的防水基层，如屋面、地下、室顶板、侧立墙等。刚性防水作为独立防水层易受到刚性基层开裂影响而产生微小的裂缝导致渗漏。
Waterproof to hardness and softness, waterproof layer to match the characteristics of grass-roots change, try to avoid rigid waterproof layer as a separate waterproof layer. Rigid waterproof material waterproof layer is used as a separate waterproof span the grassroots level, such as roofing, underground, room ceiling, its side wall. Rigid waterproof waterproof layer as a separate rigid base vulnerable to cracking and produce tiny cracks lead to leakage.
4、柔性防水层应做在坚实的防水基础上，避免防水层下面有积水层，防水层做在保温层上面。防水层在施工过程中难免出现微小破损，水会经破损处渗漏到保温层，导致雨天小漏，天晴后大漏的现象。
Flexible waterproof layer should be done on the basis of a solid waterproof, avoid waterproof layer below the water layer, waterproof layer to do the insulation layer. Waterproof layer inevitable minor damage during the construction process, the water would leak through the breakage to the insulation layer, resulting in a small leak rain after sunny large leak phenomenon.
5、采用多层复合防水时，防水层之间要叠加相容。隔层施工，如在屋顶做三层SBS防水卷材防水层，做一道防水层，批一道水泥砂浆层;做一道聚氨酯防水涂料，再做一道自粘卷材。
When using multi-layer composite waterproof, between the waterproof layer to overlay compatibility. Barrier construction, as do the three SBS waterproofing membrane roof waterproofing layer,making a waterproof layer, grant a cement mortar layer; do a polyurethane waterproof coating, do a self-adhesive membrane.
