Hi
I’d really appreciate any advice from the experts on this one. I’ve self built a 2 storey extension and the front elevation is rendered and painted with sandtex smooth white masonry paint.
When first painted, 3 weeks after rendering in November, it was fine. Recently I found a single patch where the paint bubbled and came off.
I thought not great but left it alone to plan to paint over it when the weather improves.
Today (after cold snowy spell) the weathers warmed up a lot, but I’ve noticed large areas mainly at the lower half of the wall where the paints come away and bubbled.
I’m absolutely gutted as I built the entire thing myself and the painted render was supposed to be a wow factor, and is now coming off and will look terrible.
I’d really appreciate any advice on where I went wrong, I suspect I didn’t give the render (2 coat sand cement) enough time to dry before painting, and also how best to fix this , scrape the bubbles patches off, let it dry in warmer weather and repaint? Or any other product I could use.
I didn’t stabilise the new render, just brushed it down and painted 3 coats over a weekend.
Thanks for reading, all thoughts appreciated, pics attached
I’d really appreciate any advice from the experts on this one. I’ve self built a 2 storey extension and the front elevation is rendered and painted with sandtex smooth white masonry paint.
When first painted, 3 weeks after rendering in November, it was fine. Recently I found a single patch where the paint bubbled and came off.
I thought not great but left it alone to plan to paint over it when the weather improves.
Today (after cold snowy spell) the weathers warmed up a lot, but I’ve noticed large areas mainly at the lower half of the wall where the paints come away and bubbled.
I’m absolutely gutted as I built the entire thing myself and the painted render was supposed to be a wow factor, and is now coming off and will look terrible.
I’d really appreciate any advice on where I went wrong, I suspect I didn’t give the render (2 coat sand cement) enough time to dry before painting, and also how best to fix this , scrape the bubbles patches off, let it dry in warmer weather and repaint? Or any other product I could use.
I didn’t stabilise the new render, just brushed it down and painted 3 coats over a weekend.
Thanks for reading, all thoughts appreciated, pics attached