Believe it or not, I have never come across PVC cladding before. Probably because my main DIY era was in the 70/8os. It will also solve another problem I have so many thanks.
We have a shower room which has single brick external walls. It also has a flat roof which overlaps by 4 inches. We want to apply insulation to the outside two of the walls (50mm Celotex, polystyrene or similar) but do not know what to use as a cladding over it. Some sort of weatherproof...