The first step in the repair of any metal roofing material will involve cleaning the surface.
Repair holes in tin roof.
A hole in a metal roof system can be caused by any number of sources the hole may be from deterioration and rust or it may be from something falling onto the roof surface such as a large branch.
Use a wire brush to scrape away rusted areas on your roof.
Repairing holes in a roof requires that you to go on the roof itself so if this is a problem hire a professional to do the repairs.
Strive to clear away as much of the rust as you can.
Apply a coat of acrylic coating to the area around the hole or holes with a paintbrush.
Sometimes it is better to repair a metal roof than to replace it.
Repairing nail holes in a metal roof is an inexpensive alternative to replacing portions of the roof.
3 cut a piece of polyester mesh slightly.
For rust that proves difficult to clear apply some mineral oil onto the rusted areas with paper towels.
Inspect the roof thoroughly to find all holes that require repair.
You want the patch to extend past the hole at least 2 inches on each side.