batts

/bæts/
noun
  1. Pieces of fiberglass, mineral wool, or other insulating material, typically in the form of rolls or sheets, used to insulate buildings.
    • The old batts in the ceiling were damp and had to be replaced.
    • The contractor installed fiberglass batts in the attic to improve energy efficiency.
    • We need to buy more insulation batts for the walls of the new house.
  2. Plural of batt; a sheet or roll of insulating material.
    • These batts are made from recycled denim, which is eco-friendly.
    • He cut the batts to fit snugly between the wooden studs.
    • The hardware store sells batts of various thicknesses for different insulation needs.
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