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How to Paint or Stain Clay Roof Tiles

Terracotta clay tiles absorb sunlight and help insulate homes during winter and summer months. While some find their natural reddish-brown color quaint and charming, others prefer a more modern, subdued look. Since terracotta's porous surface will absorb paint and alter its tone, it is crucial to lay down primer before coloring clay roof tiles.

Things You'll Need

  • Trisodium phosphate (TSP) cleaning solution
  • Garden sprayer
  • Stiff brush
  • Drop cloths
  • Painter's tape
  • Newspaper
  • Masonry primer
  • Nylon paintbrush
  • Foam roller
  • Paint sprayer
  • Exterior acrylic paint
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Instructions

    • 1

      Power wash the tiles with a trisodium phosphate (TSP) cleaning solution, using a garden sprayer. The TSP will remove dirt and debris from the tiles. Use a stiff brush to dislodge any stubborn dirt around the tiles and rinse the roof with plain water, using a garden sprayer. Allow the roof to dry overnight before proceeding.

    • 2

      Lay drop cloths on the ground around the roof. Cover anything you don't want to get paint on with painter's tape and newspaper.

    • 3

      Prime the roof with masonry primer, using a nylon paintbrush for textured roofs and tight spots and a foam roller for large flat areas. Alternately, use a paint sprayer to distribute an even coat of primer over the tiles. Allow the primer to dry overnight.

    • 4

      Apply a second coat of primer using the same techniques used to apply the first coat. Let the primer dry overnight.

    • 5

      Apply a layer of latex paint using the same methods used to apply the primer. Let the paint dry overnight, then apply one or two additional coats.