If crawling around on a metal roof in the hot sun does.
Best paint for galvanized metal roof.
After many years of exposure to the elements the paint on the roof began to wear off crack and peel necessitating.
Metal roofing panels are often made of galvanized steel because it is resistant to water damage and is highly durable to impact.
Galvanized metal roofs are coated with a layer of zinc that inhibits rust.
To paint a metal roof you ll need to use an oil based paint if you have a terne metal roof or an acrylic based paint if you have a galvanized metal roof.
Link to product info on amazon first might be a good idea.
My house was built circa 1880 and still has its original terne metal roof which consists of individual metal shingles with an embossed decorative pattern.
Galvanized metal requires either a zinc dust type paint or a latex paint.
How to paint galvanized steel roofing panels.
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.
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.
If it s a newer roof the galvanizing can definitely cause you adhesion problems.
Although you can.
If you re not sure what kind of roof you have ask a professional roofer to inspect it before you paint it.