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the covering of a floor in parquet. Parquetry includes preparing the base, laying the parquet, and finishing the parquet. The procedure used depends on the material the base is made of (cement, asphalt, wood) and the type of parquet. Pieced parquet is laid onto a single smooth, hard surface. It is glued with cold mastics (bituminous, resin-bituminous, polymerous) to a cement base covered with a layer of gypsum cement or concrete. To reduce sound conductivity of the floor, a backing of fiberboard, for example, may also be glued with mastic between the parquet and the base. Parquet is attached to a wooden base (plank flooring) with nails. Paper, cardboard, or parchment is laid between the planks and the parquet to prevent squeaking. Pieced parquet may be laid in a herringbone pattern or foursquare and may or may not have a “frieze” around the perimeter of the room. After the floor is laid, the parquet is finished by planing, sanding, or polishing. Special planing and polishing machinery for parquet is available.
Floors of parquet panels are laid on a wooden lagging cemented with hot bituminous mastic to a soundproof backing of fiberboard on a bed of sand. These floors do not require planing. Their finishing includes only sanding and polishing or lacquering. The installation of sheet parquet of the standard type is done similarly.