1.首次涂抹防水涂料前，务必确保施工现场干净整洁，无杂物和湿润痕迹。防水涂料应均匀覆盖，无遗漏与基层紧密结合，表面无裂纹、气泡或脱落现象。保证涂刷高度一致，厚度达到产品推荐标准。

2.在进行第二次防水涂膜之前，要等待第一遍涂膜完全干燥，并且要根据具体的防水材料说明书规定的时间间隔来安排。在时间间隔过短的情况下，可能会大幅降低防水效果。

3.为了保护刚完成的防水层免受后续施工影响，需要在其表面铺设保护层。保护层必须完整覆盖所有区域，无遗漏，与基底牢固结合，没有裂缝、气泡或脱落问题。

4.闭水试验阶段，要将地面最高点的液体保持不低于2厘米，并持续至少24小时观察。如果发现渗漏现象，则需重新施工，并不能忽视任何细节。此外，还包括了基底处理、清理工作，以及找平层、二次找平层和丙烯酸防水涂料等多个步骤中的质量控制要求。

5.对于厨房和卫生间这样的特定区域，其标高测量尤为重要，特别是地漏位置必须准确无误。

6.在地漏和管道接口处要仔细检查墙洞是否密实合格，在找平过程中管道根部必须做嵌缝处理。

7.阴阳角应该设计成圆弧形，以便顺直、光滑。

8.finding the cracks or defects on the base, use cement mortar to repair and level it off.

9.The base must be solid, flat, clean and free of dust, oil, wax or adhesives before proceeding with waterproofing work.

10.After completion of waterproofing layer construction, a protective layer should be applied to prevent damage from subsequent construction activities.

11.Once the protective layer is confirmed as satisfactory through inspection and testing procedures can proceed with other tasks such as installing fixtures etc., after obtaining necessary permits.

12.Final water tightness test should be conducted after all equipment installations are complete and no leaks are detected within 24 hours; this may require two rounds of tests if necessary.

13.As for selecting materials for home plumbing in Shanghai:

Copper pipes offer good durability but can corrode over time

PEX (cross-linked polyethylene) pipes provide flexibility but might not withstand high pressure

PVC (polyvinyl chloride) pipes are affordable but prone to cracking under stress

The choice ultimately depends on budget constraints and specific requirements