However if you want to paint over prepainted metal you re in luck.
Painted metal roof before and after.
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.
If you re not sure what kind of roof you have ask a professional roofer to inspect it before you paint it.
However it is not uncommon to get scuffs on the facia during a reroof so expect there to be some touch ups needed.
Just before painting wash the roof with a power washer at a pressure of 2 500 pounds per square inch whether it is a new or an old one that requires re painting.
I always prefer painting before the roof is installed to save time masking or holding a shield if spraying.
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.
You ll also need to purchase a primer designed for metal roofs.
If you paint the roof you should paint both sections.
Atmospheric dirt will help mute the difference as well.
Here s how to make sure you make the right calls while addin.
Painted metal roofs come with.
Galvanized metal roofs are coated with a layer of zinc that inhibits rust.
This article is meant to clarify the answers to some of the most common questions our customers have about painting a metal roof.
Painting a metal roof introduction.
Try to achieve a slightly abraded texturized finish as this helps your new paint bond with the roof finish.
However all painted metal roofs have one downside in common and that is that they have to be repainted periodically.
Its likely the color variance will tone down over time.
Then any paint on the shingles doesn t matter.
Painting metal roofing provides you with a number of steps and decisions throughout the process.
Before painting you ll still need to do a little.
Metal surfaces require specialized primer and paint for good paint adhesion.
Metal can be painted and coated over and the darker the color the more of the suns radiant energy it will absorb i e.
Prepainted metallic surfaces can be treated almost like any other basic latex or oil painted surface.
Sand the entire metal roof surface very lightly with your wire brush or sandpaper.