the new house need not to paste mesh
It depends on the situation of wall flatness and the base wall, the general commercial residential semi-finished building is not needed
Pasting mesh is based on your walls, if the wall cracking too much, it is recommendated to paste mesh in the whole wall; if it is less, you just need to paste at the cracking place.
Firstly, you should look at the structure of the wall whether has cracking phenomenon, if not, you do not need the whole stick, just need to hang in the joint or slotted place where is easy to crack.