The paint you used for wood or even fiberglass will not work well on metal.
What type of paint to use on metal roof.
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.
Painted metal roofs come with a baked on factory finish and you can re coat these as well as paint bare metal roofing with acrylic latex paint.
You ll also need to purchase a primer designed for metal roofs.
Metal roofing paints need to be made specifically for the conditions that they are going to encounter.
This saves even more money on the overall system.
Type of paint to use.
Surfaces such as metal and raw wood require at least one coat of primer before you paint them.
Galvanized roofs require the use of a different paint than what is used on terne metal.
Large cans may be the most cost effective option when painting large linear metal objects such as fences and backsplashes but spray paints e g rust oleum hammered metal finish spray 8 74.
You cannot use any of your normal house paints to paint a metal roof.
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.
A topcoat doesn t eliminate the need for a good primer the topcoat seals your paint but the primer makes the paint.
Some people painting their roof with the same type of paint as used with the rest of the home.
This is a huge factor in what coating system you ll want to use and is critical to determining how to prepare the existing surface.
However this could be a problem because the roof is made up of different materials than the rest of their house.
Make sure to apply a thin coat of primer and allow it to dry thoroughly before you paint.
Because sheet roofing is often chosen as a more economical type of metal roofing the paints used on sheet metal roofing are often lesser quality.
Generally sheet roofing systems should be examined closely before being selected for residential projects looking for a lifetime roof.
Acrylic latex paint is a good choice for bare metal roofs and to go over old paint.
Terne is best painted with an oil based paint.
The paint must be able to withstand boiling temperatures from the sun s rays as well as be fire proof water proof and able to fend off any pest invasions.
Oil based alkyd paint may also be used with an appropriate galvanized metal primer.
If you re not sure what kind of roof you have ask a professional roofer to inspect it before you paint it.
What kind of paint should you use on a metal roof.
The first step in painting any metal roof is determining what substrate and existing coatings you are dealing with.
Usually however the reason a paint job doesn t last is because the painter failed to use a primer.