本文结合兰州市城中村改造滩尖子安置点10#、11#地块住宅小区B区一标段工程中对传统砌筑式出屋面烟气道的改进,介绍了使用预制钢模进行出屋面烟气道的加工安装过程。通过实践检验,工艺可靠,效果良好,保证了工程的施工质量。 Based on the improvement of the traditional masonry exit smoke passage in the first section of B zone of residential district 10 # and 11 # in Tanjianzi settlement of Lanzhou city, this paper introduces the use of prefabricated steel mold to produce roof smoke Airway processing and installation process. Through practical testing, reliable technology, good effect, to ensure the construction quality of the project.