We found out something interesting when we last visited the house. Indeed, the job was something new to us.
The workers were fixing an L-shaped material at the edges of all the walls, all the around the house. We have never seen such things done in any renovation we saw before. Chiauw told us that it is a normal architectural procedure. The purpose is to give a perfect edge to the walls. At the same time, it will prevent future edge cracks.
A Close-up look at the L-Shaped Wall Edge Straightener:
Straightener at Walls:
Straightener at Beams: