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How to Repair Sun Damage on Wood Floors

Sun can damage a wood floor over time as surely as water can. Unfiltered sunlight that's allowed to hit the same areas of the floor year after year will dry out the gloss surface and discolor the stain. While this won't cause structural problems for the floor, it is a serious aesthetic issue, because the only way to fix the discoloration is to refinish the whole floor. See your local floor dealer to rent the drum sander and get the right sanding belts for it.

Things You'll Need

  • Rented drum sander
  • Sandpaper belts for the sander in heavy (30-grit), medium (60-grit) and fine (120 grit) abrasion
  • Vacuum cleaner
  • Stain
  • Paintbrushes
  • Cotton rags
  • Polyurethane floor gloss
  • 240-grit sandpaper
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Instructions

    • 1

      Put the heavy sanding belt in your rented sander. Run the sander over the floor in a diagonal direction to take up most of the existing finish. Don't let the sander stand in one place while it's running, or it will gouge the floor.

    • 2

      Vacuum up the dust.

    • 3

      Re-load the sander with its medium sanding belt. Sand the floor in the opposite diagonal direction as before, taking up the rest of the finish and stripping the wood bare. Vaccuum.

    • 4

      Sand the floor a third time, with the direction of the floorboards, getting them smooth and flat. Vacuum well.

    • 5

      Apply wood stain over the bare floorboards, using a paintbrush. Brush in sections of 4 to 6 square feet, letting the stain soak into each section for about one minute, then wiping up the excess stain with cotton rags. Cover the entire floor.

    • 6

      Let the stain set for 12 to 24 hours.

    • 7

      Brush on polyurethane gloss over the stain in a thin, light layer, brushing with the direction of the boards. Let the gloss set for six hours.

    • 8

      Lightly sand the dried polyurethane with 240-grit sandpaper, by hand, just enough to dull the surface. Vacuum the dust.

    • 9

      Brush on a second coat of polyurethane gloss. Let it set for six hours. Lightly sand it. Brush on a third coat. Let it set for 24 hours.

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Floor Repairs
  1. How to Repair a Nicked Wood Floor
  2. How to Repair a Parquet Floor
  3. How to Make My Wood Floors Look Gray
  4. How to Repair Squeaks on Engineered Wood Floors on Concrete Subfloors
  5. How to Fill & Seal Holes in Wood Floors
  6. How to Repair a Small Splinter in a Wood Floor
  7. How to Reseal Prefinished Wood Floors
  8. How to Reseal Engineered Wood Floors
  9. How to Muffle Footsteps on Wood Floors
  10. How to Fix an Uneven Stain on Refinished Wood Floors
  11. How to Apply Stain to New Wood Floors
  12. How to Repair Wood Stain

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