Lustron metal roof

Might want to post a picture of the roof in question. Have you contact a roof pro that can possibly straighten out the damaged sections? I can't imagine that it is still available at this point.

Just adding on to what Eric said, he is correct ... if this is a Lustron home, unfortunately the roof tiles are no longer made and the tooling for them was scrapped out years ago ... I have been down this path several times before in similar situations. Additionally, while a talented metal worker could sort of re-create a similar product by hand, it would have to be from painted metal while your product actually has a porcelainized finish. That would be virtually impossible to recreate as much porecelainizing is done overseas at this point and requires a very specific type of steel. The steel would have to be sourced, someone would have to hand-form the panels, and then they'd have to be sent out to be porcelainized in a custom color. I wish I had better news for you. No doubt that roof has done well for you ... and I love Lustron homes.

I will concur that there probably is no wood decking on your home. Most any roof system you install will require decking. There are some metal options that wouldn't Have you ever had any issues with condensation in the home? I always get concerned about metal roofs without decking. Keep in mind the porcelain on your current roof does impact the cold transmission a bit. I have seen Lustron homes that were re-roofed with decking and asphalt shingles. Decking and an aluminum roof would be much lower weight and not weigh a whole lot more than the current roof which is probably in the neighborhood of 1.75 pounds per square foot. 1/2" decking and aluminum roofing would come in around 2.5. On the other hand, asphalt shingles on 1/2" plywood decking would be around 4.75+