Browse Forums DIY, Home Maintenance & Repair 1 Feb 11, 2020 2:13 pm Like ⋅ Add a comment ⋅ Pin to Ideaboard ⋅ Like ⋅ Add a comment ⋅ Pin to Ideaboard ⋅ Hi there. I'm new to the forums, but I feel like I'll be around a fair bit! I have a bit of an issue that I'd like some advice on. As the post title says: I have paint peeling off my rendered brick walls. We live in an old Californian Bungalow - double brick with rendered interior walls. I've painted a couple of rooms without issue, but today I started scratching at some loose paint on our dining room wall and within a very short time - had peeled the whole wall! The paint comes off in a thick sheet (MANY layers of paint), and hardly needs any help once you've got an edge loose. Underneath is just the render, which is really smooth, though has some chips and blemishes. So, my questions: 1. Is this a sign of something more sinister - eg. damp brick/plaster or is it simply that the base coat has lost adhesion? 2. What's the best way to repair this? I was intending to strip off as much paint as is loose (which might end up being the whole room!) and then hit it with some zinzser, skim-coat, zinser again, and then paint.. Any help is appreciated - thanks! Peeling paint on rendered brick walls 2Feb 11, 2020 3:06 pm kriss Is this a sign of something more sinister - eg. damp brick/plaster or is it simply that the base coat has lost adhesion? It could be either...or both. You could get the moisture content of the wall tested to see if it is within code. However, you also mention that the underlying plaster is very smooth, so perhaps the preparation before the original paint job wasn’t good enough. The fact that it is coming up in thick sheets means that might have been some time ago. kriss What's the best way to repair this? I was intending to strip off as much paint as is loose (which might end up being the whole room!) and then hit it with some zinzser, skim-coat, zinser again, and then paint.. If it’s damp, then you might need to address the underlying issue first by finding the source of the dampness. It could be a leak behind the wall or under the floor, but less likely if the whole room is equally affected. Therefore, it could be that the underfloor ventilation is compromised or a failure of the damp course. Have you looked under the floor? This might help you troubleshoot: https://www.abis.com.au/dampness If it is just the smoothness of the underlying plaster, then anything that can create a more adhesive surface, be that mechanical or chemical, would probably work. kriss We live in an old Californian Bungalow - double brick with rendered interior walls. This house wouldn’t be in Adelaide, would it? Re: Peeling paint on rendered brick walls 3Feb 12, 2020 6:53 am I think the first coat was probably an oil-based undercoat that has given way over time as each new coat of acrylic paint has been applied. I would just strip it off, apply a good binder sealer and go again. If you have a paint rep close you could call to test moisture but I doubt thats the problem. Re: Peeling paint on rendered brick walls 4Feb 12, 2020 12:58 pm arcadelt If it’s damp, then you might need to address the underlying issue first by finding the source of the dampness. It could be a leak behind the wall or under the floor, but less likely if the whole room is equally affected. Therefore, it could be that the underfloor ventilation is compromised or a failure of the damp course. Have you looked under the floor? This might help you troubleshoot: https://www.abis.com.au/dampness On some further inspection I think we're OK for damp - there has been an issue in the past with an overflowing downpipe outside this wall but it's been clear for about 6 months (and it doesn't rain here anyway - until it does). arcadelt https://www.abis.com.au/dampnessThis house wouldn’t be in Adelaide, would it? Nope - sunny/RAINY/sunny Sydney. thepa1nter I think the first coat was probably an oil-based undercoat that has given way over time as each new coat of acrylic paint has been applied. I would just strip it off, apply a good binder sealer and go again. If you have a paint rep close you could call to test moisture but I doubt thats the problem. I think/hope you're right - that first layer of paint would be over 100 years old! Any recommendations for a good binder sealer? Also any suggestions on what I should use to fill the imperfections on the finish (I was just going to use a skim coat)? DIY, Home Maintenance & Repair At a bit of a loss on this one - we're thinking the original owners never removed the protective laminate covers from their kitchen cabinets after installation and in the… 0 7308 Coming back to this.... When installing a pressure flashing, what fixings would you use (please give a link) ? Above Pedro said nylon anchors. Anyone have a preferred… 7 11838 |