通常,厨房间的排烟道安装为先预留孔洞、后安装烟道,之后对烟道与墙体交界处的间隙进行灌浆处理,此处间隙一般为2~3cm,灌浆较困难或无法直接灌浆。用户在冲洗灶台或地面时,水极易沿此处渗入下一层。出现此问题后,维修困难,会给用户带来不便。对此,我们尝试在新建的砖混结构住宅工程中,采取与通常做法相反的安装方式,即成品烟道安装与主体结构施工同步进 Normally, the exhaust duct of the kitchen is installed to reserve the hole first, then the flue is installed, then the gap at the junction of the flue and the wall is grouted, where the gap is usually 2 ~ 3cm, the grouting is difficult or can not be directly Grouting. When users wash the stove or the ground, water easily infiltrated into the next layer along here. This problem occurs, the maintenance is difficult, will bring inconvenience to the user. In this regard, we try to adopt the installation method opposite to normal practice in the newly-built masonry-concrete residential building project, namely, the finished product flue installation is synchronized with the main structure construction