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The versatile Isosonic Basefloor system can be used with most types of separating concrete floor to provide Approved Document Part E compliance.

  • Exceeds Building Regulation requirements.
  • Suitable for most types of concrete floor.
  • System uses Isorubber Base to reduce noise transfer, this is a tough, resilient acoustic mat that can withstand the rigours of the screeding process.
  • Purpose made Isoedge strip is used around the screed perimeter to eliminate flanking sound transfer.
  • No long term / short term deformation of acoustic layer.
  • Suitable for use with Under Floor Heating.
  • Tried and tested solution which has been widely used since 2003.
Acoustic Performance:

Test results will vary for each floor type, pre-cast plank constructions have a site test mean average of: Airborne Sound ≥ 50db (Dntw + Ctr) Impact Sound ≤ 57db (Lntw) This exceeds the Building Regulation (Approved Document Part E) requirements by 5dB in both cases.

Isorubber Base

Roll Size: 6mm x 1m x 10m Roll Weight: 37Kg (14 Rolls per pallet) Density: 635Kg/m3

Isoedge 6/260

Roll Size: 6mm x 260mm x 50m Roll Weight: 5.2Kg (3 Rolls per Bag) Density: 30Kg/m3

Isosonic Hanger Type C

Box Quantity: 100 Box Weight: 10.8Kg

Isosonic Ceiling Strip

Roll Size: 40mm x 25m Roll Weight: 0.8Kg (10 Rolls in a Bag) Density: 30Kg/m3

Isorubber Base is a 6mm thick acoustic insulation that is laid beneath the screed, separating it from the structural floor and absorbing impact sound. A durable product with a density of approximately 635Kg/m3, Isorubber Base does not suffer from any deterioration of acoustic performance during the normal lifespan of a building. This is because it undergoes virtually no short term deformation or long term creep deformation under normal domestic loads.

With a recycled content of approximately 90% waste rubber, a Global Warming Potential of Zero and an Ozone Depletion Potential of Zero Isorubber Base provides a means of using problematic waste material to the benefit of the environment.

Isoedge 6/260, a purpose made edge strip, is fitted around the perimeter of the screed to separate it from the walls and reduce flanking sound transmission. With an adhesive backing strip, die cuts and markings to aid installation Isoedge 6/260 has been designed to eliminate installation errors at what is generally regarded as a problem junction.

No CFCs or HCFCs are used in the manufacture of Isoedge 6/260 and it has Global Warming Potential of 3 and Ozone Depletion Potential Zero. A standard metal frame or Isosonic Ceiling system is also required to the underside of the structural floor. The type and depth of the ceiling are dependent on the structural floor thickness (please check our installation guides or contact our Technical Department for further information).

The Isosonic Ceiling treatment utilises Isosonic Hangers Type C to separate the ceiling from the structural floor. Isosonic Ceiling Strip can be used around the ceiling perimeter to help reduce flanking sound transmission. Mineral wool can be included in the ceiling void to improve test results, this is recommended in beam & block constructions, as they have a lower mass than pre-cast plank and in-situ concrete floors.

The Isosonic Basefloor system consists of 6mm Isorubber Base fitted below a minimum 65mm sand & cement or minimum 40mm proprietary screed with Isoedge 6/260 separating the screed from the wall. The structural floor must be a minimum mass of 300Kg/m2 per unit area. This system can be used with all masonry external flanking wall constructions, including aircrete blocks (450 – 800Kg/m3, 1350 – 1600Kg/m3 & 1850 – 2300Kg/m3) depending on floor mass. A metal frame ceiling with a minimum void of 100mm or an Isosonic Ceiling is also required. Both ceiling details are under drawn with a layer of gypsum based board (minimum 8Kg/m2).

The extensive site testing carried out shows that the Isosonic Basefloor system can achieve 3 Code for Sustainable Homes Credits, subject to pre-completion testing.