How to Repaint a Metal Building

After years of weathering, a metal building can begin to look very worn and tarnished. But metal can't be re-painted quickly with some paint you have laying around. Metal needs preparation and the proper paint in order for the paint job to last for years.

Pressure washer
Oil-based primer
Oil-based paint
80 grit sandpaper
Paintbrush
Paint thinner

Instructions

- 1
  Connect the pressure washer to a water hose. Turn on the water hydrant. Plug in the pressure washer.
- 2
  Clean the metal building with back and forth passes of the pressure washer water stream. Work your way from the top down. Let the building dry.
- 3
  Paint a thin coat of oil-based primer over the entire metal building surface.
- 4
  Clean the paint brush with paint thinner. Oil-based primer and paint can be cleaned only with gas or paint thinner.
- 5
  Allow the primer to dry for 24 hours. Paint the entire metal building with a thin coat of oil-based paint in the color you choose. Allow the paint to dry for 24 hours.
- 6
  Paint the entire metal building with another thin coat of the oil-based paint.

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