How To Repaint A Metal Roof

Terne is best painted with an oil based paint.

How to repaint a metal roof.

The first step in painting any metal roof is determining what substrate and existing coatings you are dealing with. Remove all rust using your wire brush or sandpaper. Soak your cloth or sponge in the water detergent mixture. Scrub from the bottom of the panel upward in a left to right back and forth fashion.

You cannot use any of your normal house paints to paint a metal roof. Apply the sherwin williams paint and primer to a galvanized roof with a paintbrush or a roller specifically designed for corrugated metal. This is a huge factor in what coating system you ll want to use and is critical to determining how to prepare the existing surface. Sand the entire metal roof surface very lightly with your wire brush or.

Scrub problem areas with your detergent solution. The paint must be able to withstand boiling temperatures from the sun s rays as well as be fire proof water proof and able to fend off any pest invasions. One of my neighbors used an oil based paint as a primer since some of the metal was rusted and then covered the roof with one of the specially formulated roofing paints that is sold by calbar for use on old metal roofs for an added layer of protection. If crawling around on a metal roof in the hot sun does not.

When painting from your ladder don t try to extend your reach to paint areas that are too far away. Metal roofing paints need to be made specifically for the conditions that they are going to encounter. Once each panel is clean rinse it immediately with clean water to prevent streaks and film. Always keep both feet firmly against a rung of the ladder and hold onto the side of the ladder with the hand you re not.

Scrape away any loose or flaking paint using your putty knife. Instead use a paint roller with a long handle to.