How to remove horse hair plaster

Written by stan mack
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How to remove horse hair plaster
Horse-hair plaster cracks with age. (cracked plaster wall image by AGphotographer from Fotolia.com)

Horse-hair plaster is a type of wall covering commonly found in older homes. In the past, home builders mixed hair into plaster in order to give it strength. Then they would spread the plaster over lathing, a latticework of closely placed strips of wood. The plaster would squeeze into the lathing before drying. The installers then finished the job by applying several coats of thin plaster until the surface of the wall or ceiling had a smooth polish. To remove the plaster, separate the dried plaster from the lathing.

Skill level:
Moderately Easy

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Things you need

  • Plastic dust sheets
  • Protective clothing
  • Respirator mask
  • Safety glasses
  • Hammer
  • Sledgehammer
  • Pry bar
  • Wet-dry vacuum or broom

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Instructions

  1. 1

    Seal off the area with plastic dust sheets from floor to ceiling. Plaster dust is fine and pervasive, so closing off the work area saves time in cleaning and dusting off every surface in the home. Also, keep windows and doors closed during the project. Breezes and cross ventilation only spread the dust farther.

  2. 2

    Put on old clothing, a hat, gloves, a respirator mask and safety glasses. The more body area you cover, the easier your cleanup is later. Use a respirator mask that is approved for use with fine particulates like plaster dust.

  3. 3

    Turn off all electrical power to the room in case there are buried wires in the horsehair plaster.

  4. 4

    Use a hammer to break a hole in the horsehair plaster. Then use gloved hands to remove the large chunks that break away. If the plaster proves difficult to shatter, use a large sledgehammer to pound the plaster until it cracks and breaks.

  5. 5

    Use a pry bar to separate large chunks of plaster from the lathing. To do this, work the end of the pry bar in between the plaster and the wood lathing. Leverage the plaster away from the wall. Note that smaller chunks are typically easier to dispose of, so they may have to be broken up into large pieces.

  6. 6

    Dispose of the debris after removing all the plaster. Sweep up or use a wet-dry vacuum to remove as much dust as possible. Then allow the kicked-up dust to settle for 24 hours before vacuuming again.

  7. 7

    Take down and dispose of the plastic dust sheets that are used to separate the work area from the rest of the house.

Tips and warnings

  • If you think your home may have asbestos, do not attempt to remove the horsehair plaster. Call a professional asbestos removal contractor, because asbestos is extremely dangerous and can cause serious health problems. If you are unsure whether your home has asbestos, ask the local building code office for information about the history of local building practices. Alternatively, break away a small section of plaster and send it to a laboratory for testing.

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