have just chiselled off about four layers of tiles back to the brick in the bathroom,i am going to fix moisture resisant pb to the walls, my question is can i dot and dab the boards on or will i have to baton out and fix with screws, i have used this type of pb before. many thanks for any help ![Roll Eyes :rolleyes: :rolleyes:](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)