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Removing Tar Paper Underlay From Old Floors

Placed on top of wood or cement floors, tar paper acts as a moisture barrier and usually covers old flooring before installing the new tiles or linoleum. The tar paper adheres to the old floor creating a strong bond. Before installing a new floor, you must remove the old underlay. Removing tar paper from old floors is a difficult process that takes time and hard work. However, with the proper tools you can safely remove the tar paper without damaging the wood.

Things You'll Need

  • Rubber gloves
  • Mineral spirits
  • Small bucket
  • Paint brush
  • Putty knife
  • Paper towels
  • Lacquer thinner
  • Cloths
  • Acetone
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Instructions

    • 1

      Open the windows in the room you are working in and put on rubber gloves. Pour mineral spirits in a small bucket. Saturate a paintbrush in the mineral spirits.

    • 2

      Brush the liquid directly on a small section of the tar paper until it is thoroughly saturated with the mineral spirits.

    • 3

      Scrape the saturated tar paper off the old floor with a putty knife. Wipe the putty knife clean with paper towels.

    • 4

      Repeat Steps 2 and 3 until you have removed the tar paper off the floor. Saturate any lingering tar paper with lacquer thinner and wait 10 to 14 minutes before scraping with a paint scraper.

    • 5

      Remove any lingering adhesive with a cloth dampened with acetone. Rinse the floors with a clean, damp cloth.