I’m thinking about redecorating my bedroom. It’s not very big, it’s surface area is 25.5m squared roughly.
The walls in my room are currently painted and are sort of textured as they have little bumps all over it. I want to get rid of this so I can have a smooth finish before repainting it, but I’m not entirely sure what I should do.
After carrying out some research, I found that I can apply a joint compound by carrying out the necessary steps to get rid of the bumps and apparently I can paint on top of it to if I apply a primer after. The only thing is, my walls are quite hollow and according to my sources, that means my plaster is blown.
I guess I have a few questions:
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Will plaster do the same think as a joint compound in the sense that it’ll smoothen out my wall and cover the bumps? If yes, how do I prepare my already painted wall for it + Can I paint on top of it?
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Will a joint compound make my walls less hollow in the way that plaster would?
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Is it a bad idea to apply a joint compound to my wall (to remove bumps), then apply plaster (to make my walls less hollow), and then paint them?
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What tools/equipment do I actually need to plaster/apply joint compound to my wall?
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What products do I need and what processes do I need to go through in order to do everything I need to do before repainting?
If you couldn’t tell, I’m not very experienced in the building and house decor industry. However, hiring someone is not an option and I want this to be a personal project of mine and I simply can’t afford it.
Best Answer
Two long for a comment so added as a second answer: a photo of the walls in question would be helpful, I am used to working in 1900's and newer homes with these type the walls have a 1/2" to 3/4" of plaster or sheetrock the only way to make them sound less hollow is to have them filled with insulation. If you want to get a solid brick or stone wall sound an overlay sheeting may help like a faux brick wall , the only problem with these is I could always see the seams. To get rid of the bumps it depends on what type of wall it is but both start with sanding as I outlined sheetrock would use a finer grade of sand paper compared to plaster. Joint compound can be used in both cases for a base coat to get things close but a super flat finish would require topping compound much finer and easier sanding.