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How to Clean a Fascia & Soffit

Updated February 21, 2017

Keeping your house trim clean is good preventive maintenance. Cleaning the underside of your eaves where the soffit panels cover the bottom of your rafter tails, and the edge of the roof, where your fascia runs horizontally along the ends of the rafter tails, not only keeps your house looking fresh, it allows you to see early signs of damage or needed repairs. Water pressure is the best tool for cleaning fascia and soffit, but keep the pressure to what will come out of your hose to minimise damage.

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  1. Mix 113gr, or 1/2 cup, of dish washing or washing powder to 2 gallons of warm water in a bucket. Add two tablespoons of bleach to kill mildew and mix thoroughly.

  2. Set your ladder in a stable position where you can reach one end of your soffit easily. If possible, position it so that you can clean both fascia and soffit at the same time.

  3. Soak a large sponge in the warm water solution and scrub it over the fascia and soffit working back toward the house. Concentrate on indented or textured areas that typically hold more dirt trapped in their indentations. Work on a section as large as you can reach from the ladder.

  4. Fit a squeeze trigger nozzle onto the end of your garden hose, turning it clockwise to tighten, and turn the pressure on high. Rinse the section of the soffit you just scrubbed, washing away all of the dirt and rinsing enough to clear the surface of detergent and bleach.

  5. Move the ladder and scrub the next section in the same way, rinsing it with the hose when scrubbing is complete. Use a stiff nylon brush on stubborn stains and in the louvres of soffit vent grills. Angle the water horizontally when spraying grills to minimise the moisture that goes up through the vent.

  6. Use a thin paint scraper or razor scraper to remove sticky spots left by insects or adhesives. Remove especially stubborn stains with nail polish remover applied with a cotton ball.

  7. Tip

    Plan to wash your windows at the same time so that the streaks from the cleaning solution will be removed immediately, rather than allowed to calcify, making them more difficult to clean.

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Things You'll Need

  • Dish washing detergent
  • Bucket
  • Bleach
  • Sponge
  • Ladder
  • Hose
  • Trigger nozzle
  • Scraper
  • Nail polish remover

About the Author

Mark Morris started writing professionally in 1995. He has published a novel and stage plays with SEEDS studio. Morris specializes in many topics and has 15 years of professional carpentry experience. He is a voice, acting and film teacher. He also teaches stage craft and lectures on playwriting for Oklahoma Christian University.

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