How to draw the frame joints of external walls?

Correct steps of external wall frame joint:

1. notch cutting: according to the process of external wall insulation layer, after the insulation layer is painted, the notch of frame joint can be cut to the foundation surface of shear wall, the position is flush with the line of window cover, the notch width is 5 cm, and the spacing of frame joint is 4 layers.

2. Repair the notch: firstly powder a layer of anti-crack mortar on the inner wall of the notch, and then spread the embedded glass fiber grid cloth all over the inner wall, extending to the outer wall in the up-and-down direction with a length of not less than 20 cm, so as to ensure that it is overlapped with the large-area grid cloth on the outer wall. Then, after the notch is filled with anti-crack mortar, the prefabricated frame joint fillet can be installed.

3. Edge trimming: After the frame joint fillet is installed, the anti-crack mortar shall be painted on the large surface of the external wall, and attention shall be paid to the painting of the upper and lower interfaces of the frame joint fillet.