We had the frame renderd back in Dec 15 / Jan 16 just after the frame was erected.   System is 25mm battens onto the MBC exterior panel, 12.5mm Gtec Render board, 4mm Parex Maite undercoat with mesh reinforcement, 4mm Parex Maite second coat and 1mm Parex DPR topcoat.   Application went well, they were very diligent, only working when the conditions were suitable and the finish looked superb when complete. They were back a few months ago to do the garage and some other areas