Painting Old Tin Roof

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Painting old tin roof.

Sand the entire metal roof surface very lightly with your wire brush or sandpaper. Not using a sealant. Generally a tin roof is referring to one of two things. 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.

Be extremely careful not to pierce the metal when scraping. Black jack silver seal 300 4 75 gallon aluminum reflective roof coating 3 year limited warranty item 12035. The term tin is a misnomer in this situation. Another mistake is to forget or ignore using a sealant before the application of the metal paint.

Try to achieve a slightly abraded texturized finish as this helps your new paint bond with the roof finish. This is why when you are considering painting your metal roofing it makes sense to go for specific paints for the metal roof. Whether your roof has been painted previously or not powerwash just before you start painting. You ll also need to purchase a primer designed for metal roofs.

Just before painting wash the roof with a power washer at a pressure of 2 500 pounds per square inch whether it is a new or an old one that requires re painting. The first incarnation of the tin roof was a sheet of steel with a tin coating on the surface to prevent oxidization. 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. Make sure to use a putty knife to scrape and scratch away all loose pealing 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. It is very rare to find an actual tin roof. Terne tin is a little trickier to determine.

If you re planning to paint a brand new raw tin roof you don t need to do much preparation work. Black jack elasto kool 1000 5 gallon elastomeric reflective roof coating 10 year limited warranty item 139941. If you have a terne metal roof like this one then it has probably been repainted several times over the years.