What is the most crucial step before laying parquet flooring?

Preparing the sub-floor to be clean, dry, structurally sound, and perfectly level as per Clause 4.

How is the wooden floor protected from rising damp?

By providing a suitable damp-proof course (DPC), such as a layer of bitumen or a polyethylene sheet, on the sub-floor as specified in Clause 5.

How soon can the floor be sanded after laying?

Sanding and finishing should only be done after the adhesive has set completely, typically after 3 to 7 days, allowing the panels to settle.

What is the maximum allowed moisture content in the timber?

The moisture content of the timber should not exceed 12 percent at the time of laying to prevent future warping or shrinkage.

IS 9472

: 1980

Code of practice for laying mosaic parquet flooring

CurrentSpecializedCode of PracticeBIMArchitectural · Building Construction Practices incl. Painting, Varnishing

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This standard provides guidance on the method of laying mosaic parquet flooring made of small wooden blocks. It covers the selection of materials, preparation of the sub-floor, application of damp-proofing and adhesives, the laying process for panels, and final finishing operations like sanding and polishing.

Code of practice for laying mosaic parquet flooring

Quick Reference Values

Maximum moisture content of timber blocks12%

Minimum curing period for concrete sub-floor28 days

Permissible tolerance in level of sub-floor±3 mm over 3 m

Minimum thickness of parquet panels8 mm

Recommended waiting period after laying before sanding3 to 7 days

Practical Notes

Sub-floor preparation is the most critical step. Any unevenness, dampness, or contamination will lead to flooring failure.

Always allow the parquet panels to acclimatize to the ambient temperature and humidity of the installation area for at least 48-72 hours before laying.

Ensure adequate ventilation is provided during the application of adhesives and finishes, especially if they are solvent-based.