After all the material is glued, the surface should be processed, treated with a damp cloth or sponge to remove excess glue. If necessary, the seams can be thrown and painted with water -based paint (you can choose the color at will and according to your taste and preferences) in two layers. On the perimeter of the room you need to glue the ceiling skirting board (fillets). Small the gap between ceiling tiles and skirting boards with a thin layer of putty for finishing work, you can use a small spatula after everything dries out with sandpaper with small abrasive.