When spraying a roof with water based acrylic paint at least a 017 inch spray tip preferably of the reversible type should be fitted.
How to spray paint a tin roof.
Wash the brush or roller you used for the primer or get a new one.
If you happen to have an airless spray.
Carefully overlap the layer you applied previously until the tin roof is fully painted.
Apply the sherwin williams paint and primer to a galvanized roof with a paintbrush or a roller specifically designed for corrugated metal.
Painting metal roofing provides you with a number of steps and decisions throughout the process.
Larger airless spray tips such as a 018 inch or 019 inch can also be used if it is a large roof and the spray painter is experienced in using airless spray equipment.
Again work from your ladder as much as possible.
Apply the first coat using a paint sprayer in slow even passes for the entire length of the roof.
Apply a generous amount of paint across the entire roof.
If crawling around on a metal roof in.