Painting A Rusted Steel Roof

Painting a rusted metal roof step 1.

Painting a rusted steel roof.

Hand or power tool clean the rusty metal to remove any flaky rust and unsound paint. How to prepare a rusted galvanized metal roof for painting step 1. Once done you can paint over rust. If painting over lightly rusted or bare metal i e.

Scrape rust from the roof using a wire. Metal shed painting 1 apply a rust inhibiting primer with a brush. Water blast clean the prepared surface to remove all remaining dust and contaminants leaving a clean dry surface. Let the roof dry out thoroughly before applying noxyde coating.

You can also use oil based alkyd paint but. Wash the galvanized metal using a pressure washer. Apply a primer to. Wash the metal roof using trisodium phosphate in water at a ratio of 1 cup tsp per 1 gallon water.

Scrub the rust away using a stiff wire brush. Galvanized metal roofs are usually painted with acrylic based paint. However badly rusted metal areas need more prep work and possibly a special primer. 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.

Start with a wire brush photo 1. Make sure you get into all the crevices around the surface of the shed. To prep metal for paint adhesion you must first clean it with soap and water remove light rust with a wire brush sand it with fine grain sandpaper and then in most cases prime. Some historical homes have terne metal roofs and these need to be painted with oil based paint.

Wait a full 24 hours for the roof to dry. Instructions on how to paint over rust. Find either oil based or acrylic based paint at your local home improvement store. Scrub partially rusted metal areas with a wire brush to remove flakes and powdery surface rust then prime with a rust inhibitive primer.

No rust remained after wire brushing it then top it with a water or oil based interior exterior rust preventative metal primer available for.