09-26-2024, 12:01 AM
We scored some free used aluminum roofing. I don't know how old it is, but it looked like it was in really good shape, solid, and I put it on a shed I built. When I was done admiring my work from the outside, I went inside the shed to admire it and that's when I noticed the thousands of almost microscopic pinholes. The only way they're visible is being inside the dark shed with the sun hitting the aluminum roof. There is no other way to know they are there, a bright flashlight wont do it. So while aluminum doesn't rust, something does happen to it that degrades it and causes it to fail in a way that isn't easily visible. The holes don't really leak in the traditional sense, but I imagine the problem will continue to get worse, and it can probably be sealed with the proper paint, but in my case the quickest way to ignore the problem was to put a cheap tarp over it. I'll get around to re-doing the roof "eventually", but if I had a 5 year plan it probably wouldn't make the list right now.