Painting A Rusted Steel Roof

Wait a full 24 hours for the roof to dry.

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

Let the roof dry out thoroughly before applying noxyde coating. This will remove flaking rust and as much of the surface rust as. However badly rusted metal areas need more prep work and possibly a special primer. Scrape rust from the roof using a wire.

Wash the galvanized metal using a pressure washer. You can also use oil based alkyd paint but. Metal shed painting 1 apply a rust inhibiting primer with a brush. Hand or power tool clean the rusty metal to remove any flaky rust and unsound paint.

Painting a rusted metal roof step 1. Scrub partially rusted metal areas with a wire brush to remove flakes and powdery surface rust then prime with a rust inhibitive primer. Access the rusted galvanized metal roof using an extension ladder. 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.

Water blast clean the prepared surface to remove all remaining dust and contaminants leaving a clean dry surface. If painting over lightly rusted or bare metal i e. Start with a wire brush photo 1. No rust remained after wire brushing it then top it with a water or oil based interior exterior rust preventative metal primer available for.

Scrub the rust away using a stiff wire brush. Apply a primer to. Once done you can paint over rust. Make sure you get into all the crevices around the surface of the shed.

Instructions on how to paint over rust.