When looking at old items in an antique store, you probably don’t mind seeing some rust, since this can add to the aged look of an object. On the other hand, if your home is starting to show areas where rust is spreading, you are probably a lot less appreciative. Rust can do serious damage to your home, even if you don’t have a metal roof or metal siding. You might not realize how many parts of your home are made out of metal until you start having issues with rust. For rust to affect an object, there needs to be air and oxygen in contact with it. This is why you often see this problem in areas that have gotten scratched, and because of that having its protective coating compromised.
Rust can be a serious issue for the integrity of your home. Rusty nails will not be able to withstand as much force as when they first were inserted. Rebar in cement that rusts will expand and crack the cement open.