文档介绍：屋面防水工程技术要求
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编制部门:运营管理中心
第 0 页
目录
一、屋面防水工程技术要求························ 2
················ 1
····························· 2
找平层与找坡层·························· 3
隔汽层······························ 3
隔离层······························ 4
保护层······························ 5
····························· 6
卷材防水屋面··························· 6
涂料防水层施工························· 12
接缝密封防水施工························ 13
···························· 14
板状材料保温层························· 14
架空隔热层··························· 14
种植隔热层··························· 15
保温隔热砖··························· 16
··························· 17
雨水口的安装: ························· 17
出屋面的结构: ························· 18
女儿墙的结构: ························· 18
反梁过水孔: ·························· 19
出屋面管道防水收口做法: ···················· 19
分格缝的做法: ························· 20
变形缝的做法: ························· 21
出屋面管道及支架: ······················· 22
天沟做法: ··························· 23
排气构造: ··························· 23
二、质量施工及验收要求························ 25
三、成品保护····························· 28
四、屋面工程管理要求························· 28
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一、屋面工程防水技术要求
:
分部工程子分部工程分项工程
基层与保护找坡层,找平层,隔汽层,隔离层,保护层
防水与密封卷材防水层,涂膜防水层,复合防水层,接缝密封防水
屋面工程板状材料保温层,纤维材料保温层,喷涂硬泡聚氨酯保温层,
保温与隔热现浇泡沫混凝土保温层,种植隔热层,架空隔热层,蓄水隔
热层
天沟,女儿墙和山墙,水落口,变形缝,伸出屋面管道,屋
细部构造
面出入口,反梁过水孔,设施基座,屋脊
保温屋面构造层次示意图倒置式屋面构造层次示意图
第 2 页
2、基层与保护
找平层及找坡层
、屋面找坡应满足设计找坡要求,结构找坡不应小于3%,材料找坡宜为2%,找坡
层最薄处厚度不宜小于20mm。天沟纵向找坡不应小于1%,沟底水落差不得超过
200mm。
、基层清理:将找坡层表面的松散杂物清扫干净,突出基层表面的灰渣等粘接杂物
要铲平,不得影响找平层的有效厚度(附图1)。
、洒水湿润:抹找平层水泥砂浆前,适当洒水湿润基层,利于基层与找平层的结合
(附图 2)。
、冲筋、贴饼定标高:宜按 间距贴灰饼,然后按流水方向以间距 冲筋。
、铺装水泥砂浆:按分格块铺设砂浆,用刮杠靠冲筋条刮平,找坡后用木抹子搓平,