Painting A Rusted Steel Roof

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.

Painting a rusted steel roof.

Start with a wire brush photo 1. Scrape rust from the roof using a wire. Make sure you get into all the crevices around the surface of the shed. Instructions on how to paint over rust.

Hand or power tool clean the rusty metal to remove any flaky rust and unsound paint. However badly rusted metal areas need more prep work and possibly a special primer. Wash the galvanized metal using a pressure washer. Find either oil based or acrylic based paint at your local home improvement store.

You can also use oil based alkyd paint but. Let the roof dry out thoroughly before applying noxyde coating. If painting over lightly rusted or bare metal i e. Metal shed painting 1 apply a rust inhibiting primer with a brush.

This will remove flaking rust and as much of the surface rust as. Galvanized metal roofs are usually painted with acrylic based paint. No rust remained after wire brushing it then top it with a water or oil based interior exterior rust preventative metal primer available for. Wait a full 24 hours for the roof to dry.

Wash the metal roof using trisodium phosphate in water at a ratio of 1 cup tsp per 1 gallon water. Some historical homes have terne metal roofs and these need to be painted with oil based paint. Choose a paint that s right for your metal roof. Painting a rusted metal roof step 1.

Apply a primer to. How to prepare a rusted galvanized metal roof for painting step 1. Water blast clean the prepared surface to remove all remaining dust and contaminants leaving a clean dry surface. Scrub partially rusted metal areas with a wire brush to remove flakes and powdery surface rust then prime with a rust inhibitive primer.

Once done you can paint over rust.