How Do You Clean A Metal Roof For Painting

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.

How do you clean a metal roof for painting. To clean a metal roof wait for a dry overcast day and make sure you have a partner to help you for safety reasons. This detergent solution should be made from a tri sodium phosphate for example the laundry detergent name brand spic n span. 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.

You can use a wire brush instead. If the wire brush fails to do the job then and only then you can use a flat blade putty knife. 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 metal roofs for an added layer of protection. Unfortunately over time this coating can fail leading to minor rust outbreaks.

Long term exposure to the sun also creates a chalking effect where the metal appears lightened in color when compared to other areas of the roof. Overuse or abuse such as over concentrating a cleaning solution mixing with other chemicals or using too much of a solution for too long could lead to damage of the metal or paint system which will also likely void one or more of your warranties and leave you with the cost of paying for a metal roof replacement. Before you can clean your metal roof you ll need to do a thorough inspection of the roof itself. Anyone that has pre painted metal roofing or siding will eventually need to clean it.

Avoid scraping the paint unless you are sure that you won t damage the roof. When you re ready to get started spray your roof using a garden hose with a spray nozzle attachment starting at the top of the roof and blasting downward so the dirty water runs off the sides. If you re not sure what kind of roof you have ask a professional roofer to inspect it before you paint it. Over the course of time painted metal roofs will appear discolored in areas where dirt and grime accumulate.

Keeping your bryan roof clean is a part of normal roofing maintenance. Galvanized roofs require the use of a different paint than what is used on terne metal. You can also use oil based alkyd paint but. Galvanized metal roofs are coated with a layer of zinc that inhibits rust.

If you really need to scrape the excess paint or the peeling paint do not use any metal instruments to do so. Therefore it s usually best to clean a metal roof from on top of the house itself. It is recommended that cleaning either of these be accomplished with a mild solution of detergent.