How to Repaint My Aluminum Sided House

Aluminum siding can last a long time. But over time, the elements can wear the paint off the siding, and you'll need to repaint it. Use a watered-down oil-based primer on the siding to block air and prevent rusting. Don't use latex primer; latex contains ammonia, which can eventually lead to premature paint failure on the aluminum siding. Cover the primer with two coats of acrylic paint. Work carefully to ensure the best result.

Ladder
Bleach
Trisodium phosphate
Scrubbing brush
Hose
Paintbrushes
Oil-based metal primer
Acrylic exterior paint

Instructions

- 1
  Mix 1 cup bleach with 1 cup trisodium phosphate in one gallon warm water.
- 2
  Dip a scrubbing brush into the solution and rub it over the entire aluminum surface.
- 3
  Rinse the siding with clear water from your hose and let it dry completely.
- 4
  Paint the entire surface of the aluminum siding with oil-based metal primer. Use a thin but even coat of the primer and work until the entire house is coated.
- 5
  Let the coat of paint dry completely.
- 6
  Paint the entire house with aluminum siding paint. Apply one coat of paint. Use a thin, even coat of exterior paint and let it dry completely. Brush across the siding, but don't oversmooth the paint as it will only make deeper brush marks in it.
- 7
  Apply another coat of acrylic paint on the aluminum siding. Let it dry completely.

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