Prepare Corrugated Iron Roof Painting

Galvanized steel on the other hand cannot be painted with an oil based or aluminum based paint.

Prepare corrugated iron roof painting.

Pour an exterior grade rust inhibiting primer into a paint tray and apply it to each roof panel. Then plan on washing the roof with a power washer so it s clean when you apply the paint. Galvanized metal requires either a zinc dust type paint or a latex paint. Step 2 maintain the roof.

Use a long handled paint roller and apply primer until no portion of the metal is visible. Roll in a vertical motion working backward toward the extension ladder. Step 1 clean the roof. If your roof is painted but has bare patches from rust removal apply a primer to those areas too.

How to paint a corrugated iron roof if you are painting a new iron roof you will need to wash it with a degreaser before you start unless the roof is more then a year old and has weathered. If the project cannot wait wash off oils and other remnants of the galvanizing process with a. Roof preparation for a new and unpainted roof allow it to weather for six months before painting it. You ll need to prepare the roof by scraping away loose paint and rust with a paint scraper or putty knife.

The first trick to corrugated metal roof is to not paint a dirty metal roof. Before applying a new coat of paint you need to get rid of any oil debris and dirt buildup that already exists. Begin at the far side of the roof. Wait four hours for the primer to dry.

You ll then apply one coat of primer and two coats of paint to your roof although you may need to apply additional coats of paint depending on how dark and rich you want the color to be. You ll get the best results if you use brushes or rollers designed for a metal roof. Now that your roof is cleaned and primed you can start painting. This means that the oil from fabrication has worn away and the iron has been slightly etched through weathering.

Touch up areas inaccessible to the roller using the 3 or 4 inch nylon paintbrush. Wait three hours for the metal to dry.