Hello this wall faces the prevailing weather conditions and has always been a problem to me .I last painted it with Sandtex two years ago and the paint is already showing signs of peeling. Anyway I have spent a day trying to remove as much loose paint and not so loose paint ( in fact it took quite a bit of scraping ) as possible with mixed results. I used a pressure washer and scrapers with one section and got most of the paint off but it was slow and laborious so then I proceeded with the next section only removing the worst of it off and then thought of applying Zinsser Peel Stop across the whole area or some other primer that binds seals and provides a good backing for some Weathershield. I wonder if anyone can advise me please
? Thanks