I'm planning to fix up an interior wall in the basement a bit. Paint and some other debris have come off. On the floor, there is a paint that peels with moisture; maybe it's blocking and the moisture is seeping into the walls instead, causing it to peel there as well? My plan is to remove the paint from the floor and plaster the walls. How should I think about plaster on the wall? I've read about diffusion-open plaster, what is that?
Bubbling paint can also be a sign that too dense a paint has been used on the walls. In your case, it also seems like there's a smoother structure on part of the wall closest to the floor. Someone has probably touched up that area previously with new plaster or filler and then paint. Perhaps a common dense paint was used.
I would have tried to sand off the paint from the walls before repairing the plaster and then painted with a breathable paint, like silicate paint. Perhaps you can get away with just sanding the lower half of the walls.
Bubbling paint can also be a sign of using too dense paint on the walls. In your case, it also looks like there is a slightly smoother texture on a part of the wall closest to the floor. Probably someone has previously patched up the wall there with new plaster or filler and then paint. Maybe regular dense paint was used.
I would have tried to sand off the paint from the walls as well before fixing the plaster and then painted with breathable paint, like silicate paint. Maybe you can get away with just sanding the lower half of the walls clean
Yes, it's only at the bottom that it's smooth... as if someone tried to plaster and then applied the wrong paint. I'm thinking of focusing on the lower part only and using breathable paint. What plaster works?
Yes, it's only at the very bottom where it's smooth... like someone tried to polish and apply the wrong color. I'm probably going to focus only on the lower part and use a diffusion-open paint. What type of render works?
I have Regular Render Mortar C from byggmax on my basement walls and it has stayed put for 7-8 years. I made sure to wet the existing render thoroughly beforehand to give the new render a good adhesion. Then I rehydrated the render a day after to prevent it from drying too quickly and cracking.
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