I am renovating a storage room into a bedroom, and the ceiling currently consists of double gypsum board. I want to nail/glue a nicer ceiling onto the gypsum. However, it cannot be too thick. Do you have any suggestions? Filling and painting are not an option. Preferably something with a thickness of 5-8mm. I have found Huntonit renovation board for walls. It should be usable for the ceiling, right?