Painting Old Tin Roof

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Painting old tin roof.

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. Generally a tin roof is referring to one of two things. 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. The first incarnation of the tin roof was a sheet of steel with a tin coating on the surface to prevent oxidization.

Black jack silver seal 300 4 75 gallon aluminum reflective roof coating 3 year limited warranty item 12035. You ll also need to purchase a primer designed for metal roofs. Whether your roof has been painted previously or not powerwash just before you start painting. It is very rare to find an actual tin roof.

This is why when you are considering painting your metal roofing it makes sense to go for specific paints for the 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. Sand the entire metal roof surface very lightly with your wire brush or sandpaper. Not using a sealant.

Make sure to use a putty knife to scrape and scratch away all loose pealing paint. Another mistake is to forget or ignore using a sealant before the application of the metal paint. Water resistant metal roofing paint for example can be of great value if you live in a rainy area. If you have a terne metal roof like this one then it has probably been repainted several times over the years.

Terne tin is a little trickier to determine. Try to achieve a slightly abraded texturized finish as this helps your new paint bond with the roof finish. If you re planning to paint a brand new raw tin roof you don t need to do much preparation work. Be extremely careful not to pierce the metal when scraping.

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. The term tin is a misnomer in this situation. Black jack elasto kool 1000 5 gallon elastomeric reflective roof coating 10 year limited warranty item 139941.