Looking at wall coatings for a new parlour, previous one was done in fibreglass which looked perfect to start off with but is now starting to come away from the walls in various places. The walls are going to be built from blocks and possibly rendered although I quite liked the idea of not rendering to provide a good key for the coating also will have feeder pipes coming through the wall so have discounted plastic sheeting, I’m going to look at something called Duraflake. Opinions please.