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Painting tin roof forum.
Sta kool sk 7705 traditional acrylic elastomeric roof coating 5 gal white 4 6 out of 5 stars 36 rust oleum 7769502 protective enamel paint stops rust 32 ounce flat rusty metal primer.
However if the old roof already has a coat of paint on it you ll need to prepare the surface for the fresh coat of paint.
A good oil base primer made specifically for roofs plus an oil based topcoat.
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.
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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 2 prepare the metal.
The paint that sticks well to rusty bare metal does not bond well to galvanize and vice versa.
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.
Galvanized steel on the other hand cannot be painted with an oil based or aluminum based paint.
If crawling around on a metal roof in the hot sun does.
Make sure the roof is bone dry before starting.
Welcome to the paint talk professional painting contractors forum.
Metal can be painted and coated over and the darker the color the more of the suns radiant energy it will absorb i e.
One issue that tin roofs have especially older ones is that they can get worn out and rusty rather quickly.
Atmospheric dirt will help mute the difference as well.
You ll also need to purchase a primer designed for metal roofs.
If the metal was tin plate or terne plate ok.
Its likely the color variance will tone down over time.
Removing dirt oil and debris is just one part of a two part process to prepare a tin roof for painting.
If you paint the roof you should paint both sections.
If the metal was galvanized can be more difficult.
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Roof painting is tricky.
If properly painted the paint will not only improve the appearance but protect the roof from further rusting.
Galvanized metal requires either a zinc dust type paint or a latex paint.
Make sure to use a putty knife to scrape and scratch away all loose pealing paint.
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