Coated metal roof that is not the fastest will suffers such damage and destruction rusty fasteners and stitching the clear could result in leaks in the roof.
If there is damage to the greatest risk is of course a roof replacement cost is greater.
One of the prevention of damage to metal roofing is by coating.
One of the coating is quite popular with the elastomer. High quality of the roof is coated with elastomer extend the useful from the roof of your next few years.