|Acoustic insulation for impact noise||IMPACTODAN® 5||Chemically cross-linked and foamed polyethylene sheet||ΔLW|
4-8 dBA (according to the mortar thickness)
|Cementitious screed||ARGONIV® 420 Élite||Quick-drying self-leveling mortar.||Yield||72 kg/m²|
|Acoustic insulation at medium and high frequencies||Rock wool||Rock wool panel||ΔRA|
Unit of Work
Lightened mortar on the wooden base board of 4 cm and 2 cm of regularization mortar, cross-linked polyethylene sheet certified by D.I.T 439 R/16, IMPACTODAN® 5; 5 cm thick mortar, including proportional part of lap and perimeter bands, ready to install the finishing.
Double plasterboard with fire treatment for fire resistance of 60 min, with mineral wool 70 kg/m³ density and 40 mm thick between timbers, and ready to install decorative ceiling.