At that point it would need a primer and a top coat.
How to strip paint off metal roof.
If possible sandblast your roof.
Give it a few minutes and you should begin to see the paint bubbling off the galvanized metal.
If you re using a slow cooker or pan you can remove the hardware from the water before scraping.
Make sure to wear gloves and be careful not to burn yourself.
Be extremely careful not to pierce the metal when scraping.
Sometimes you need to strip paint.
Using a disposable paintbrush apply the chemical paint stripper to the metal and let it set according to the instructions on your.
Sand the entire metal roof surface very lightly with your wire brush or sandpaper.
Try to achieve a slightly abraded texturized finish as this helps your new paint bond with the roof finish.
Although it isn t recommended to use a metal implement to scrape the roof it was the only way to remove the loose rust and old paint.
Sandblasting the same technique used to strip rust and paint off automobiles when restoring them works just as well on metal roofing.
Once you ve coated a good area use a scraper to chip off the paint.
The results will most likely satisfy you.
Pour a little stripper into a non reactive container such as metal or glass.
Within ten minutes the detached paint on the tin roof can literally be peeled away with a paint scraper.
Scrape off the paint.
Also check in advance with your local authorities about any municipal regulations regarding scraping and repainting a metal roof.
You can cover a precise surface area with a quick application of the product leaving it to do its work.
Here s how it works.
Pour a small amount of the stripper into a glass or metal can.
The root cause is poor adhesion which could be for several reasons between the original paint and the metal you will never stop this roof from peeling unless it is cleaned entirely down to bare metal before it is repainted.
Once you notice the paint starting to peel away carefully scrape off the loosened paint while the hardware remains in the try or pie pan.