Barn, Shed and Outbuilding Painting

Barn painting means preparing and coating wood or metal farm buildings so they hold up to sun, rain and wind. Safe Choice Painting paints barns, sheds, shops and other outbuildings, including metal barn roofs and siding. Wood gets loose paint scraped and bare spots primed. Metal gets rust treated and a primer made for metal before the topcoat.

Wood barns vs metal buildings: different prep

Wood barns and sheds. Old wood barns often have years of weathered paint, bare gray boards and soft spots at the bottom. Loose paint is scraped, bare wood is primed, and joints that let water in are sealed. Soft trim, siding, fascia and soffit can be fixed through our wood rot repair service before painting. Rough-sawn boards soak up a lot of paint, so they are sprayed and then back-brushed to work it in.

Metal barns, shops and sheds. Most newer outbuildings are steel panels, often galvanized or factory-painted. The prep is cleaning, treating rust and choosing a primer that will stick to that particular metal. Our siding painting page covers metal siding on homes.

Why galvanized metal needs the right primer

Galvanized steel is coated in zinc, and the wrong paint will peel off it. Dunn-Edwards explains that alkyd or oil-based primers react with the zinc, a process called saponification, which forms a soap-like layer between the metal and the paint. It says the film can start to peel within weeks, and recommends a non-alkyd acrylic bonding primer. Rust-Oleum describes the same reaction and says a water-based primer has to go on first as a barrier if an oil-based finish will be used. That is why we never put oil-based paint straight onto galvanized panels.

Treating rust on metal barns and sheds

1. Clean. Dirt, chalk and grease come off with a degreasing cleaner and a rinse.
2. Remove loose rust. Flaking rust is wire-brushed or sanded to sound metal.
3. Prime the same day. Bare steel is primed right after cleaning, before it can flash-rust.
4. Prime galvanized spots with a bonding primer made for zinc-coated metal.
5. Topcoat. An exterior acrylic or metal coating in your color.

Panels rusted through cannot be saved with paint, and we point those out at the walkthrough.

Painting metal barn roofs

Metal roofs on barns get the hardest sun of any surface. We paint metal barn roofs after the same cleaning, rust treatment and primer steps, using a coating rated for metal roofs. Light colors reflect more heat, which helps on a building that stores hay, equipment or animals. Fasteners and seams get extra attention, since that is where rust and leaks start. Roof work is planned for calm, dry days, with safe access set up before anyone goes up.

Doors, trim and hardware

Barn doors, sliding door tracks, window frames and corner trim are finished by brush after the walls are sprayed. Hinges, latches and tracks are masked rather than painted so they keep working. Trim in a contrast color, like white on red, is cut in by hand. Wood doors that drag near the ground get their bottom edges primed and sealed, since that is where water soaks in first. Gutters and downspouts on shops and barns are painted to match the walls or trim.

Classic barn colors and the sun

Barn red, white trim, gray and dark green are the traditional choices. Summer afternoons here are hot, by NOAA's 1991 to 2020 normals, and strong sun fades deep reds and greens faster than lighter colors. A quality acrylic with good fade resistance holds color longest. On metal roofs and walls, lighter colors also run cooler.

Can a barn be sprayed?

Yes, and large barns usually are. Spraying covers big walls and rough boards quickly and evenly. Nearby vehicles, equipment, animals and plants are moved or covered first, and we watch the wind. Doors, trim and windows are finished by brush.

Rural properties

Barns, sheds and shops are common on rural properties around our towns, from Cooke County to Carter County. See our Lindsay service area. Fences around the barn can be stained in the same visit, covered on our fence staining page, and grime-covered buildings may need pressure washing first.

Nearby

• Exterior painting
• Fence staining
• Pressure washing