Fibreboard used to improve sound insulation in the flooring of the parquet and parquet in asphalt and cement-sand screed. Hard or superhard fiberboard thickness of 4 mm is used to distribute concentrated loads when laying parquet enough to stand on. Laghi (nestroganye board the second or third grade of softwood and hardwood thickness of 25-40 mm and a width of 80 - 100 mm) laid on joists under the hardwood planks, boards and parquet flooring black wooden floor. Nails diameter 2-2,5 mm and a length of 50-60 mm are used for fixing floorboards subfloor, hardwood planks and boards to lag, and nails with a diameter 1,6-1,8 mm and 40 mm long - to fix parquet to wood, the base. Paper and thin cardboard enclose a parquet, laid on wooden floors with black so it does not creak. Glassine (roll waterproofing material) is used as a layer in the parquet floors, or for sheltering the finished floor during renovations. Adhesives, KB-3, SP-2 and MMF (high strength, waterproof, on the basis of synthetic phenol-formaldehyde, melamine and other resins) used in the manufacture of parquet flooring and paneling. Lucky are there to protect flooring from wear and dirt, as well as to give it a elegant shine. The most common "parquet lacquer" is absolutely not toxic, composed of phenol formaldehyde and urea resins. Applied also pentaphthalic lacquer PF-231, an oil-resin varnish UR-19, and in the factory - lacquer MCH-52. Mastics are of two types: water and non-aqueous. Water before use diluted in warm water. Nonaqueous delivered to the construction site in finished form.
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