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How to Restore Clam Shell Awnings

Clamshell awnings are molded fiberglass or aluminum awnings that became popular in the early 1950s, and exist today on many homes and businesses. Restoring these types of awnings takes some familiarity with the product, and in some cases professional help. You can perform many minor repairs and maintenance projects, and you can replace parts of heavily damaged awnings.

Things You'll Need

  • Wire brush
  • Plastic bristle brush
  • Small block of wood
  • Hammer
  • Rag
  • Garden hose
  • Rust-resistant paint
  • Fiberglass patch kit
  • Fiberglass polish and wax kit
  • Gear oil or grease
  • Soft scrub brush
  • Chemical free mild soap
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Instructions

    • 1

      Clean the awning with a wire brush and remove any rust or paint flakes if the awning is aluminum and is peeling or rusty. If the awning is fiberglass, use a plastic bristle brush to clear the surface of dirt or debris.

    • 2

      Examine the awning for damage. An aluminum awning might have dents or creases, and fiberglass may show chips or small holes. You can repair minor damage, but an extensively damaged unit will require replacement.

    • 3

      Bump out minor dings or dents in aluminum with a small block of wood and a hammer with a rag over the head. Place the block beneath the ding and lightly tap the top with the hammer to press it back into shape.

    • 4

      Repair chips or small holes in fiberglass with a fiberglass patch kit. Apply fiberglass cloth and two-part epoxy, smooth it out to cover the damaged area and sand it smooth. You will have to repainting the awning once finished, and the new paint will probably not match the old.

    • 5

      Paint an aluminum awning with rust-resistant paint. This includes the extension arms, frame and brackets, whether the awning is permanent or folds down. Spray paint works best.

    • 6

      Polish a fiberglass awning with a polish and wax kit made especially for fiberglass. These kits will restore the luster and shine and make the paint appear more fresh and vibrant.

    • 7

      Inspect the gear box if your awning is retractable. Clean and repack the gears with gear oil or grease, and replace any fittings that are not working properly.

    • 8

      Maintain the awning by washing it down with clear water at least once a month to remove dust, debris and tree sap or leaves that can damage the finish. Once or twice a year, scrub it with a soft bristle brush and a chemical-free soap, then rinse with clear water.