Painting & Decorating

Paint coming off front of house as not re-rendered properly. How do I remedy?

Anonymous user 15/03/2024 - 2.48 PM

October last year I had the front of a Victorian house redecorated by a builder. It was in a bad state of repair as it had not been done for 30 years. The entire basement and first floor around the bay window is masonry and was painted white. As this area was in the worst state of repair it was meant to be re-rendered in places. However, I now realise Polyfiller (apparently meant to be for internal and external work) was used instead of any render. The paint then directly applied which was of good quality. A Sandtex masonry paint. Within the first rainfall the paint started to bubble and come off. I do not have the money to employ anyone again; and will do myself if I can. I had been told that if I used a stabilising solution over the Polyfiller once any paint that was loose was removed this would work. However, today I started to scrape and sand a section of the loose paint off. It looked like I had successfully scraped all loose paint off…but, more paint started to bubble and come off. I guess this does not surprise me, as that is exactly what happens when rain gets underneath it. So...Question: should I scrape after rainfall? And then sand when dry? Then attempt stabilising solution again? I am beginning to think any paint left on will continue to bubble and come off each time I do this…Thinking, I will end up repeating this process over and over, until by the time I have finished there will be no paint left at all anyway, but there will be Polyfiller over most of the wall surfaces which will be pockmarked and need filling. Toupret has been recommended to use as a filler. However, for these large areas that are mostly Polyfiller with paint over – would it be possible to instead of remove all the paint, just do a skim of render; or use a Toupret product called Planerex? However, please, if there is any way, anyone knows, I can do this job without meaning I have to do this skimming of render, as I am not a plaster, I would be grateful to know what I might do. Thanks.