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How to Clean the Exterior of a House

How to Clean the Exterior of a House. Keeping your house exterior clean not only makes it look better, but it will help keep you aware of any problems that might otherwise go unnoticed.


Step 1

Wash your house once or twice a year, depending on your area's air quality and the amount of dirt deposited by the rain. 


Step 2

Rent a power washer, which uses your garden hose to shoot a high-pressure jet of water.  Work from top to bottom to keep the dirty water below the areas you have just cleaned.


Step 3

Make up a solution of 1 tsp.  trisodium phosphate dissolved in a gallon of water.

Use this to clean siding, masonry, rock, wood, and painted surfaces. 


Step 4

Treat mildew with regular laundry bleach applied with a sponge.  Dark or heavy stains might benefit from a good scrubbing with a wire brush and a solution of 1/4 cup muriatic acid in 2 1/2 cups of water.


Step 5

Get rid of rust on hardware and window screens with a kerosene-soaked rag. 


Step 6

Bring out the beauty of naturally weathered wood with oxalic acid applied with a scrub brush (read the manufacturer's recommendations for dilution). 

Things You Will Need

  • Muriatic Acid
  • Trisodium Phosphate
  • White Kerosene
  • Clean Rags
  • Garden Hoses And Attachments
  • Liquid Bleach
  • Scrub Brushes
  • Sponges
  • Wire Brushes
  • Oxalic Acid
  • Power Washers

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