Terne is best painted with an oil based paint.
Prep metal roof for paint.
Water resistant metal roofing paint for example can be of great value if you live in a rainy area.
To paint a metal roof you ll need to use an oil based paint if you have a terne metal roof or an acrylic based paint if you have a galvanized metal roof.
Before you begin read the labels on all products you re using making sure they are suitable for the type of metal and compatible with each other.
Since there are a wide variety of metal roof colors available you probably won t need to paint your roof within 6 months of installation anyway.
This is why when you are considering painting your metal roofing it makes sense to go for specific paints for the metal roof.
Metal roofs are prone to rust because they are constantly exposed to the elements.
Apply the sherwin williams paint and primer to a galvanized roof with a paintbrush or a roller specifically designed for corrugated metal.
Painting a metal roof introduction.
You can update your roof and prevent further rusting by cleaning it up and giving it a fresh coat of paint.
Galvanized roofs require the use of a different paint than what is used on terne metal.
If you want to paint a new metal roof though you can prepare it by washing with a weak acid such as diluted vinegar to remove oils and residue first.
This information is aimed at the residential customer but can easily pertain to a commercial application as well.
Not using a sealant.
If properly painted the paint will not only improve the appearance but protect the roof from further rusting.
This article is meant to clarify the answers to some of the most common questions our customers have about painting a metal roof.
You ll also need to purchase a primer designed for metal roofs.
Sand the entire metal roof surface very lightly with your wire brush or sandpaper.
One of my neighbors used an oil based paint as a primer since some of the metal was rusted and then covered the roof with one of the specially formulated roofing paints that is sold by calbar for use on old.
Try to achieve a slightly abraded texturized finish as this helps your new paint bond with the roof finish.
If crawling around on a metal roof in the hot sun does.
If you re not sure what kind of roof you have ask a professional roofer to inspect it before you paint it.
The basic steps for surface prep are.
If you are preparing to paint a rusted galvanized metal roof pay special attention to surface preparation or you will have a recurrence of rust and or flaking.
It should appear dull rather than shiny.
Another mistake is to forget or ignore using a sealant before the application of the metal paint.
