Does anyone have any info on maintenance of a metal roof that are on the older rv's ?
I had my 95 mallard for a couple of years now and haven't touched anything, just looking for links or knowledge thanks

 

Just inspect it for cracks or splits pay attention to the areas that have calking.

 

X2. They just need re-caulking every couple years.

 

Agree.
If the caulking is in really poor shape, then I'd spend some time & clean it all off.
Did it on our old trailer a few years back.... the heat gun & putty knife worked real well... a little too well around the plastic vents . I'd recommend taking them off when you are working with the heat round them.