If it s a newer roof the galvanizing can definitely cause you adhesion problems.
Galvanized metal roof paint.
Metal x expands and contracts with the roof s movement to resist cracking and peeling.
Painting a galvanized steel panel roof is not all that different from painting other metal objects but you must ensure that the surface is perfectly clean before beginning the application process.
If it s quite old and rusty any primer for metal followed by any outdoor paint designed for metal is probably okay although a rust converter affil.
For a new and unpainted roof allow it to weather for six months before painting it.
How to paint a galvanized metal roof with sherwin williams roof preparation.
Link to product info on amazon first might be a good idea.
Sta kool 805 metal x is a tough white elastomeric roof coating that is formulated for exceptional bonding strength to metal roof surfaces.
Galvanized metal roofs are coated with a layer of zinc that inhibits rust.
This high performance product also contains rust inhibitors which provide long term protection to metal surfaces.
If you are preparing to paint a rusted galvanized metal roof pay special attention to surface preparation or you will have a recurrence of rust and or flaking.
Find metal exterior paint at lowe s today.