You can paint a rusted metal roof by using two different types of paint to cover the rusty areas of the roof. This article will provide instructions on how to prepare the rusted metal roof and apply two paint coatings. Read on to discover the reasons why you should consider painting your rusted metal roof. You might be surprised how much of a difference a coat of paint can make!
Using Two Paint Coatings to Paint a Rusted Metal Roof
Before you apply a new coating of paint on a rusted metal roof, you need to make sure it is properly primed. Primers have a curing time and should be allowed to dry for 24 to 48 hours before you can begin painting. Once the primer has dried, apply a standard exterior paint to the primed metal roof. The rust-preventive paint has a protective finish and will prevent your metal roof from rusting.
Applying one coat of paint is only a temporary solution. Using two coats will prevent further rust development and extend the lifespan of the metal roof. Depending on your maintenance practices, the type of paint you use, and the condition of the surrounding environment, a metal roof painted with two coats will typically last ten to fifteen years. Once you begin the painting process, make sure the primer dries completely before applying the second coat of paint.
Preparing a Rusted Metal Roof for Painting
You can prepare a rusted metal roof for painting by washing it with water. 2,500 pounds of pressure is necessary to wash a rusted metal roof. You can also use a power washer to wash off loose paint, mildew, and mold. Oil-based alkyd or acrylic latex paint is suitable for metal roofs. After washing, apply a second coat of paint and allow it to cure for at least two days. see more here
Once the metal roof has been cleaned and primed, it is ready to be painted. To start off with, you should apply a chemical solution of trisodium phosphate (1 cup TSP in one gallon of water). This solution should be applied by hand, or using the sprayer attachment of a garden hose. Power washing may also remove more rust. Once the rust has been removed, you can apply primer with a wide sponge roller brush. Make sure to choose a primer made for metal as this will form a strong bond between the metal and the paint.
Reasons to Paint a Rusted Metal Roof
Despite being relatively low-maintenance, metal roofing still needs proper care and maintenance to last. While regular maintenance can prevent rusting, you should also hire a painter who is experienced with this material. Besides painting, you can also get some professional advice on how to keep your metal roof in pristine condition. Listed below are some of the reasons why you should paint your metal roof. This article
If your metal roof is new, it should be weathered for about six months before painting. This will remove excess oils and minerals from the metal. Alternatively, power washing will remove any remnants of the galvanizing process. After cleaning, wait for at least one hour for the paint to dry, or longer. The longer the paint dries, the better. If it’s too wet, you may need to apply another coat.