Rust will also be the death of an otherwise great paint job.
Painting an old tin roof.
Paint over the primed roof surface using an acrylic latex paint designed for outdoor metal applications.
Galvanized metal roofs are usually painted with acrylic based paint.
Choose a paint that s right for your metal roof.
9 wait for the paint to dry completely.
Find either oil based or acrylic based paint at your local home improvement store.
Power washing removes mold mildew.
One issue that tin roofs have especially older ones is that they can get worn out and rusty rather quickly.
For larger areas you can use a spray rig for faster application.
Removing dirt oil and debris is just one part of a two part process to prepare a tin roof for painting.
Surface rust that s just part of tin.
Some historical homes have terne metal roofs and these need to be painted with oil based paint.
Apply the paint using a roller or brush as desired.
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.
Use a latex brush for latex paints and an oil based brush for oil based paints otherwise the brush will quickly ruin.
How to paint a tin roof.
First use the wire brush to remove the loose rust.