Influence roofing construction quality has two big factors, one is the material, and the second is the construction process.

影响屋面施工质量有两大因素，一是材料，二是施工过程。

youdao

After analysing leaking causes of microstone concretes roofing, the author states practical technical requirements on the processing of microstone concretes ' roofing construction.

通过对细石混凝土屋面渗漏原因的剖析，结合实际提出了细石混凝土屋面施工过程的技术要求。

youdao

During roofing construction of house, it is important to manage the links from design, construction and important position points of view with the aim to assure the construction quality.

在住宅建筑斜屋面施工过程中，要从设计、施工、重要部位等环节加强管理，以确保住宅建筑斜屋面的施工质量。

youdao

At present, some 500, 000 tonnes of slate a year is produced in the quarry for roofing, architectural materials and construction.

BBC: Penrhyn Quarry wins Welsh government loan help