Best Way To Clean Metal Barn Siding For Painting

How to paint a galvanized metal roof with sherwin williams.

Best way to clean metal barn siding for painting.

Even after pressure washing you may still find that a thin layer of dirt remains on the siding. The cloth will likely come up dark gray with a layer of fine soot. Chemicals you might use on wood or vinyl siding can cause damage to steel. Manual cleaning is preferred.

Galvanized metal roofs shed more easily than shingles or tiles and this makes them useful in places where leaf acorn and pine and. As an experiment rub a clean white cloth across the unwashed siding. Add liquid soap to the water to get the grime off. Step 3 fill the cleaning solution fill your power washer with the cleaning solution.

For aluminum siding use a pressure washer set on low to spray the metal siding and rinse the rust off. Tsp is technically known as trisodium phosphate and is a strong cleaner that removes dirt and wax on metal. Use tsp to wash all metal surfaces to be painted. Tsp can burn skin and irritate eyes.

Mix 1 3 cup laundry detergent to 6 gallons of water. While a power washer might be a little too aggressive for wood or vinyl unless you re a professional it s the best tool for cleaning steel siding. Allow it to dry for two or more days before continuing. Then rinse off the siding again with clean water.