Kitchen, bathroom is used, calcium silicate board ceiling, may I ask, what paint is good, and

Just cut a hole. The size of the opening is the same as the size of the cabinet of the exhaust fan (not the size of the panel, but the box at the back can be put in.) Make a wooden frame with the same size as the outer frame of the ventilation fan, put it behind the calcium silicate board, and lock the ventilation fan on the wooden frame with self-tapping screws. >>>More

No, the structure of the calcium silicate board is relatively hard, the plate can be cut and beaten, and the ceiling can be directly suspended, and there is no need for the splint to be the bottom layer.

Wrong material selection. The material of calcium silicate board is relatively hard, and the seams are very difficult to deal with, so you can only try to add two layers of linen with high tear resistance to make caulking bandages.

Asbestos has high fire resistance, electrical insulation and thermal insulation, and is an important fireproof, insulating and thermal insulation material. So it doesn't matter.

Yes, it is better to paste virtual branch tiles, after all, there is usually more water in the bathroom, and it is easy to clean up the bathroom with chain tiles.