For Your Home Metal Roof & Awnings

Paint a Metal Roof or Awning

Project Scenario

Doug owns a bank building with a metal awning over the entry way. How do you paint the metal awning?

Preparation

  • Pressure wash to remove dirt, grime, chalk, and other contaminants.
  • Sand to remove and loose paint and feather edges.
  • Clean with mildew retardant solution if necessary. Let dry thoroughly.
  • Scuff sand if coating is high gloss and wipe off sanding residue.
Paint Metal Roof

Notes

  • The pitch of the roof or awning must be greater than 2/12. If it is not, you will need a roof membrane system (not available at Rodda).
  • If, on the current roof or awning, water beads up like on waxed paper, do not paint. Paint adhesion will likely fail

Primer Coat

Best:     9CRBSFC1A Carboline RustBond Primer / Sealer
Better:  XIM UMA
Good:   First Coat Exterior Primer

Top Coat

Best:    9C134HGWH1A Carboline Carbothane 134 HG Gloss
Better: 758801x Powerkote Silicone Alkyd Gloss
Good:  54200x Unique II / Color Base

Caution! Things to consider

  • Roof or awning must have slope, as paints will blister with standing water.
  • Maintaining a wet edge while painting is critical.
  • Wind can affect overspray drift distances.
  • If roof or awning is non-ferrous metal, use XIM UMA as the primer.
  • Please read manufacturers instructions prior to coating.
  • Check substrate temperature prior to coating. Try to avoid painting in direct sunlight. Overcast days work best.

For more information about this or other painting tips & techniques, our paint & coatings products, or general DIY paint and coatings questions, please contact us online or by calling 1-800-452-2315.