Rusty Metal Roof Paint Prep

Apply the sherwin williams paint and primer to a galvanized roof with a paintbrush or a roller specifically designed for corrugated metal.

Rusty metal roof paint prep.

Unfortunately over time this coating can fail leading to minor rust outbreaks. Use a primer that is designed for metal and prevents rust. That s all it takes to breathe new life into any old rusty eyesore. If crawling around on a metal roof in the hot sun does.

Here s how to make sure you make the right calls while addin. 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. 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. Elbow grease will do the trick for lightly rusted metal but tougher jobs may require a power sander or chemicals.

The first step is to clean off loose rust and flaking paint and then apply a rust inhibitive primer. 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. 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.

Preparation of your roof is critical and please feel free to contact us to get the correct roof coating preparation procedure. Galvanized metal roofs are coated with a layer of zinc that inhibits rust. Old rust must be removed rather than just painted over or it will continue to corrode the roof. Painting rusty metal items versus replacing them is a win for your wallet.

Paint over the primer with a water based metal roof paint that contains rust. However badly rusted metal areas need more prep work and possibly a special primer. 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. This will inhibit any more rust from spreading and will form a strong bond between the metal and the paint.

Painting metal roofing provides you with a number of steps and decisions throughout the process. After prepping the surface prime and paint it with rust inhibiting products.