Prepare Corrugated Iron Roof Painting

Before applying a new coat of paint you need to get rid of any oil debris and dirt buildup that already exists.

Prepare corrugated iron roof painting.

You ll need to prepare the roof by scraping away loose paint and rust with a paint scraper or putty knife. Step 1 clean the roof. Pour an exterior grade rust inhibiting primer into a paint tray and apply it to each roof panel. If your roof is unpainted prime it with a metal primer.

Wait three hours for the metal to dry. My house was built circa 1880 and still has its original terne metal roof which consists of individual metal shingles with an embossed decorative pattern. Step 2 maintain the roof. If your roof is painted but has bare patches from rust removal apply a primer to those areas too.

Roll in a vertical motion working backward toward the extension ladder. Use a long handled paint roller and apply primer until no portion of the metal is visible. Wait four hours for the primer to dry. 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.

The first trick to corrugated metal roof is to not paint a dirty metal roof. You ll get the best results if you use brushes or rollers designed for a metal roof. Galvanized metal requires either a zinc dust type paint or a latex paint. Use a power washer or brush with a mild cleaner to remove grime and debris.

Now that your roof is cleaned and primed you can start painting. Touch up areas inaccessible to the roller using the 3 or 4 inch nylon paintbrush. Roof preparation for a new and unpainted roof allow it to weather for six months before painting it. Begin at the far side of the roof.

Then plan on washing the roof with a power washer so it s clean when you apply the paint. Galvanized steel on the other hand cannot be painted with an oil based or aluminum based paint.