Apply the sherwin williams paint and primer to a galvanized roof with a paintbrush or a roller specifically designed for corrugated metal.
How to spray paint corrugated iron roof.
Rinse the metal again once you ve cleaned it all.
Dip a clean rag into your soap solution then wring it out.
Start from a predetermined area and spray about a meter wide portion and work your way down the sheet.
If your roof is unpainted prime it with a metal primer.
Spray down the corrugated metal with water from a hose.
By using a paint sprayer you can make sure that you cover all areas with a nice even finish.
Mix 1 tablespoon dish soap and 1 gallon of water in a bucket to create a soap solution.
You can use the joints on the sheets as your guide.
Using an airless spray gun is the fastest and most convenient way to paint a corrugated iron roof.
The coating will be applied in two coats to achieve a minimum dry film thickness of 350 microns forming a thick polymer rubber membrane that will allow for 200 elongation and will handle any thermal expansion when the roof heats up in the sun.
The most cost effective method of applying the noxyde coating is with an approved airless spray unit.
Step 1 clean the roof.
If crawling around on a metal roof in the hot sun does not.
Step 4 purchase a primer.
How to paint corrugated metal roofing.
If you have these kinds of surfaces it s likely there are gaps nooks and crannies that are hard to reach with an ordinary paint brush.
Step 2 maintain the roof.
Before applying a new coat of paint you.
If your roof is painted but has bare patches from rust removal apply a primer to those areas too.
Now that your roof is cleaned and primed you can start painting.
Step 5 apply the primer.
Step 3 use a power washer.
You ll get the best results if you use brushes or rollers designed for a metal roof.