Rusty Metal Roof Paint Prep

Intend on painting as quickly as possible after you notice the rust doing this will nip the trouble in the bud and give your rusted metal roof a much needed new look.

Rusty metal roof paint prep.

Apply a primer to the roof using a wider sponge roller brush or a paint sprayer. Allow the primer to cure according to package instructions before proceeding. You don t need to get down to bare shiny metal just clean off the flakes and powdery surface rust that prevent paint from adhering. Old rust must be removed rather than just painted over or it will continue to corrode the roof.

This will inhibit any more rust from spreading and will form a strong bond between the metal and the paint. However badly rusted metal areas need more prep work and possibly a special primer. Apply the sherwin williams paint and primer to a galvanized roof with a paintbrush or a roller specifically designed for corrugated metal. That s all it takes to breathe new life into any old rusty eyesore.

Unfortunately over time this coating can fail leading to minor rust outbreaks. 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. Paint can t bond to rust so you ll need to start by restoring the surface. Here s how to make sure you make the right calls while addin.

Elbow grease will do the trick for lightly rusted metal but tougher jobs may require a power sander or chemicals. Use a primer that is designed for metal and prevents rust. The first step is to clean off loose rust and flaking paint and then apply a rust inhibitive primer. Galvanized metal roofs are coated with a layer of zinc that inhibits rust.

If crawling around on a metal roof in the hot sun does. After prepping the surface prime and paint it with rust inhibiting products. To prep metal for paint adhesion you must first clean it with soap and water remove light rust with a wire brush sand it with fine grain sandpaper and then in most cases prime. Paint over the primer with a water based metal roof paint that contains rust.

The best ways to paint rusted metal easily. Add up the costs of a 12 ounce spray can of rust conversion primer and a 12 ounce can of metal paint that each cover.