Prepare Corrugated Iron Roof Painting

You ll get the best results if you use brushes or rollers designed for a metal roof.

Prepare corrugated iron roof painting.

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. 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 1 clean the roof. Wait four hours for the primer to dry.

Pour an exterior grade rust inhibiting primer into a paint tray and apply it to each roof panel. Begin at the far side of the roof. If your roof is unpainted prime it with a metal primer. Roof preparation for a new and unpainted roof allow it to weather for six months before painting it.

Roll in a vertical motion working backward toward the extension ladder. Galvanized steel on the other hand cannot be painted with an oil based or aluminum based paint. 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. Now that your roof is cleaned and primed you can start painting.

Before applying a new coat of paint you need to get rid of any oil debris and dirt buildup that already exists. This means that the oil from fabrication has worn away and the iron has been slightly etched through weathering. Wait three hours for the metal to dry. If the project cannot wait wash off oils and other remnants of the galvanizing process with a.

Galvanized metal requires either a zinc dust type paint or a latex paint. Touch up areas inaccessible to the roller using the 3 or 4 inch nylon paintbrush. The first trick to corrugated metal roof is to not paint a dirty metal roof. Use a power washer or brush with a mild cleaner to remove grime and debris.

Use a long handled paint roller and apply primer until no portion of the metal is visible. Then plan on washing the roof with a power washer so it s clean when you apply the paint.