屋面涂膜及外墙面防水施工

　
　　屋面及外墙渗漏是常见的质量通病。如何防治屋面及外墙渗漏，本文着重谈谈施工中的一些技术问题。
一、屋面涂膜防水施工、
1．水泥砂浆找平层必须按设计要求挂线或做标志找坡，并安装好分格缝板条。水泥砂浆找平收水后应进行2次压光，使表面平整密实，并充分养护，屋面转角处要求用圆角抹子抹出圆弧，水落口四周50em直径范围内的找平层要抹成凹坑。
Roof waterproofing coating and outer wall

Roof and exterior wall leakage is a common quality problems. How to prevent leaking roof and external walls, the construction of this paper highlight a number of technical problems.
1, roof waterproofing coating,
1. Leveling layer of cement mortar must be according to design requirements or do sign hung to find slope, and install sub-slab lattice seam. Leveling mortar should be carried out after the resumption of water 2 times calendar, making the surface smooth dense, and full maintenance, roofing requirements with a rounded trowel corner wiping out the arc, Mizuochi mouth around 50em diameter within the leveling layer should be wiped into the concave pit.