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Fonas 31

Fonas 31

Fonas 31 is a base layer for the soundproofing of floating floors consisting in a high-weight non-woven polyester matched with a reinforced bituminous membrane realized with a special compound. The product is superficially covered with a polyethylene film and has a selvedge on one side and a self-adhesive band on the other side, in order to realize optimal junctions. 




Advantages

  • Δlnv = 31 dB
  • S’t = 15 MN/m³ 
  • S’ = 32 MN/m³
  • Easily laid thanks to the roll equipped with a membrane that protects against the screed
  • Adhesive selvedge for perfect join between the rolls
  • Excellent carriage and storage thanks to the limited size of rolls
  • Possibility of waterproofing the room with a second layer of membrane
  • Odourless and decay-proof



Uses
  • Soundproofing of floors from impact noises (floating floors)