How do I clean rough plaster walls?




My garage walls are made with a rough plaster.finish ,they are grungy and need a good cleaning. How do I clean this type of plaster,and what should I use. I have tried scrubbing with a brush and dawn dish soap,but still dirty.
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My mom's house has plaster walls, but not in the garage. I use a vinegar water solution and blot with a fluffy car was sponge.
https://m.wikihow.com/Clean-Plaster-Walls
Neither garage do I see the walls . . . Lucky you!
Take a old t shirt and pin it over a broom. Use that to dust and wipe down the walls. Is the paint a gloss so that dust and dirt don't penetrate or absorb into the walls? If that doesn't work I would scrape them and sand them smooth, paint with gloss paint in a light color that reflects light, that would make them so much easier to keep clean.
Hi Norma, I think If you have washed them down, then you could then seal the wall and then repaint it using a Cement and Render Paint.........Don't work too hard.......
Hi Norma,
You certainly do! If a job is worth doing it might be worth doing it really well, then maybe it will be the last time you will Ever have to do it!............Good luck
Try a leaf blower with a high setting. If you can empty out the garage, maybe pressure wash on a low setting. I am a big fan of vinegar with baking soda & blue Dawn. If you find something that really works, post the project. I'm sure others would love for you to share any hacks you find.
Thanks for your helpful information.