26、外窗台抹灰要伸入窗框下做室外窗台抹灰时,抹灰面要伸入窗框底外下角内3毫米,形成披水线,防止雨水倒洇室内(见图12)。27,外墙装修分槽线加深处理外墙挂板(预制墙板)拼缝,外装修分格线,以及真假石材外装修的分格线或清水拼缝,勾缝时可在水泥内加25%的青灰,如果是米 26, when the outer window sills are put into the window frame to be plastered on the outdoor window sills, the plaster surface must extend 3 mm into the bottom corner of the window frame to form a water line to prevent the rain from falling into the room (see Figure 12). 27, The external wall decoration division groove line is deepened to deal with the outer wall hanging board (prefabricated wall board) patchwork, the outer decoration dividing line, as well as the true or false stone decoration line or the clean water patchwork joint, can be in the cement during the jointing Plus 25% of green ash if it is rice