View Painting Aluminum Siding Bad Idea
Pics. Damaged siding should be repaired or replaced before. Instead of replacing old aluminum siding, it is often more cost effective to repaint it.
We have not power washed or cleaned this side yet. All of the chalkiness must be washed and scrubbed off, and any flaking paint removed. Older aluminum siding (in upper midwest, us ) was almost always coated with vinyl.
Look for holes, loose siding, make sure there is no caulking to do.
But before you start, you need to embrace the idea that you will have repairs needed to your home's envelope when you remove aluminum siding. Aluminum siding is not affected by water and it does not rust. I cleaned the house really well. I hired a guy to wash it first.