hi jmc,this is not the way to go i would advise your friend of this.
platerboard takes a weight of 32 k per sq m 2 layrs of tiles will no doubt alreadfy exceed that and adding wetwall will do this again.....always best to strip the room and install a fresh
platerboard takes a weight of 32 k per sq m 2 layrs of tiles will no doubt alreadfy exceed that and adding wetwall will do this again.....always best to strip the room and install a fresh