屋面防水工程施工要点
Key Points of Roof Waterproofing Construction
①、出屋面管道补孔工作应在做屋面防水层前完成，包括穿层管补孔。并由专人负责，不得由管道工补孔，以确保修补质量。凿除预留四壁松动浮石，清除垃圾，底模必须支撑牢固，以保证补漏浆，不下坠。
(1) The work of repairing holes in roofing pipes should be completed before the roofing waterproof layer is made, including repairing holes in perforated pipes. It shall be the responsibility of a special person and shall not be repaired by a plumber to ensure the quality of repairs. In order to remove the loose pumice reserved on the four walls and remove the garbage, the bottom mould must be firmly supported to ensure that the leaking slurry does not fall.
②、提前洒水湿润后，浇20㎜1：2水泥浆接浆，上浇C20加微膨胀剂细石砼，并要求浇筑密实。
(2) After wetting in advance, pour 20_1:2 cement slurry and C20 fine aggregate concrete with micro-expansive agent, and require compact pouring.
③、隔天在其表面上用防水油膏嵌缝，然后用1：2水泥砂浆与屋面找平，并在管道周边做“馒头”，在“馒头”与
(3) Inserting waterproof ointment on its surface the next day, then leveling the roof with 1:2 cement mortar, and making "steamed bread" around the pipeline, and "steamed bread" and "steamed bread".
管道之间宜填嵌密封材料再做防水处理。
Sealing material should be filled between pipelines and waterproof treatment should be done.