Paint Rusty Metal Barn Roof

You can also use oil based alkyd paint but.

Paint rusty metal barn roof.

Combine 1 1 2 cups tsp for every 5 gallons of hot water. The black tip provides enough pressure to clean without stripping the existing paint. Wait a full 24 hours for the roof to dry. Treat any flash rust by rubbing paint thinner onto the surface.

Dirt can increase rust so this way you start with a good foundation. To paint a rusty metal shed you ll need to sand away the rust apply a special primer then paint it. Instructions on how to paint over rust. Wash the metal roof using trisodium phosphate in water at a ratio of 1 cup tsp per 1 gallon water.

Begin with the roof and use the power washer with the tsp solution to thoroughly clean the pole barn in 8 foot by 8 foot sections. 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. Scrape rust from the roof using a wire. Scrub the rust away using a stiff wire brush.

Insert the black tip on the power washer wand. Access the rusted galvanized metal roof using an extension ladder. Wash the galvanized metal using a pressure washer. How to prepare a rusted galvanized metal roof for painting step 1.

Apply a primer to. Painting a rusted metal roof step 1. Water blast clean the prepared surface to remove all remaining dust and contaminants leaving a clean dry surface. Hand or power tool clean the rusty metal to remove any flaky rust and unsound paint.