My truck spent most of its time out west and the roof and hood paint became very faded. I noticed some pin points of rust starting to come through on the roof, so I sanded em off, gave it a quick prime, and line-x'd the roof for $100. 00 (had the bed done a few weeks earlier). It's parked outside underneath some pine trees, but I don't worry about that anymore. If the roof starts to rust out from the inside, then SO BE IT!