It is best to find a place with a hollow, knock it open, add metal mesh or even steel bars, and then high-grade cement.
If it is a problem of internal stress in the building, nothing can be solved.
Mesh cloth can only solve smaller ones, and the width of 2mm~4mm probably does not need to use mesh cloth for the entire wall. Nailing steel wire mesh at the junction of two walls that are not built at the same time, beams, columns, and brick walls, and then applying cement mortar can play an anti-cracking effect. Mesh cloth is generally on the cement mortar surface or at the joint between the mortar surface and the wooden surface or various It is used for putting putty on the joints of the decorative boards after pasting, and it has a little anti-cracking effect.
