Metal Roof Paint Rust

A well done paint job can last for several years.

Metal roof paint rust.

If crawling around on a metal roof in the hot sun does not. 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. Rust is the reaction of oxygen moisture and metal that results in reddish brown blotches. Water blast clean the prepared surface to remove all remaining dust and contaminants leaving a clean dry surface.

Instructions on how to paint over rust. It is not simply a cosmetic problem however. How to paint a metal roof. Then plan on washing the roof with a power washer so it s clean when you apply the paint.

Hand or power tool clean the rusty metal to remove any flaky rust and unsound paint. You can update your roof and prevent further rusting by cleaning it up and giving it a fresh coat of paint. Unfortunately over time this coating can fail leading to minor rust outbreaks. Apply the sherwin williams paint and primer to a galvanized roof with a paintbrush or a roller specifically designed for corrugated metal.

As you can see from photo a the paint had peeled off and the roof rusted. Once you ve conditioned the galvanized metal to accept paint apply a rust inhibitive primer to prevent a recurrence. An examination showed that the metal was solid with a few small holes. What to use and to process to go through so you can have a new metal roof again.

Paint will not adhere to your metal roofing unless you apply an etching primer first. The roof was power washed and a metal putty knife was used to scrape the rust and old paint. The first job was to scrape all of the loose rust dried paint chunks and old roof cement. If properly painted the paint will not only improve the appearance but protect the roof from further rusting.

You ll need to prepare the roof by scraping away loose paint and rust with a paint scraper or putty knife. Metal roofs are prone to rust because they are constantly exposed to the elements. Let the roof dry out thoroughly before applying noxyde coating.