出色底层表面的尖锐硬物、砂浆疙瘩等根除，不能根除时应选用水泥砂浆抹面掩盖处置，抹面圆弧半径应大于300mm。并将尘土杂物根除洁净，阴阳角、管根部等处更应仔细收拾，若有不一样污渍、铁锈等，应以砂纸、钢丝刷、溶剂等根除洁净。
Well bottom sharp hard object, the surface mortar bumps cannot eradicate eradication, should be used with cement mortar to cover treatment, surface radius should be greater than 300mm. And the dust impurity eradicate clean, yin yang angle, pipe root should be more carefully pick up, if not the same stains, rust etc., should be based on the sand, steel wire brush, the eradication of clean solvent.
平立面交接处的阴阳角均应做成均匀一起、平整光滑的圆角，阴角圆弧半径不小于50mm，阳角圆弧半径不小于20mm；防水材料及系统配件需保存在通风、单调的当地，并远离火源，应避免日晒、雨淋。
Facade junction of the yin yang angle should be made uniform with smooth, rounded, corner radius of not less than 50mm, corner radius of not less than 20mm; waterproof materials and accessories must be maintained at the local ventilation, monotonous, and away from the fire source, should avoid the sun, rain.
底层表面应平整光滑、均匀一起，其平整度用2m直尺检查，最大空位不大于5㎜，且每米不多于1处；底层需要无明水即可施工卷材，需热熔粘贴施工的底层表面应尽可以单调，含水率宜小于9%。测定方法是：将1㎡的卷材掩盖在底层表面上，静置2～3h，若掩盖的底层表面无水印，且紧贴底层一侧的卷材亦无凝结水痕，即为符合粘贴施工需要。
The bottom surface should be smooth, uniform, the flatness of 2m ruler examination, the maximum space is not greater than 5 mm per meter, and no more than 1; the bottom need no Mingshui to construction material, the bottom surface needs to be hot melt paste construction should as far as possible the monotone, moisture content should be less than 9%. Determination of the method is: will roll 1 ㎡ cover on the bottom surface, standing for 2 ~ 3H, if the underlying surface cover no watermark, coil and close to the bottom side of the no condensed water mark, is consistent with sticking construction need.
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