Verlegung des Trittschalldämmsystems von Saint-Gobain Weber

weber.floor acoustic systems

…because your nerves deserve a rest

Quiet has good reasons

According to a recent survey, one in five of more than 2,000 tenants questioned felt disturbed by the noise of their neighbours, and in large cities it was even one in three. No wonder: people want to have their peace and quiet at home. The sounds of footsteps or the backs of chairs from neighbouring flats are usually perceived as disturbing. If they can be heard constantly, they noticeably impair the quality of living and often lead to disputes between neighbours or tenants. A remedy for this is efficient impact sound insulation. It increases the living comfort and thus also the value and rentability of a property.

With its high-quality impact sound insulation systems, Saint-Gobain Weber offers custom-fit solutions for more quietness in multi-storey buildings. Both systems significantly improve impact sound insulation despite a low installation height. During installation, they score points with a short installation time as well as a mechanical and low-dust processing.

Causes and legal basis

Impact sound is a structure-borne sound that is generated for ex. by walking (foot traffic), moving furniture or knocking. The disturbing noise is mechanically transferred directly into the ceiling and radiated into the neighbouring rooms – mainly into the lower rooms.

Causes of impact sound deficiencies are mainly as follows: ceilings without floating screed, ribbed ceilings and solid ceilings with a too low mass per unit area, hollow core ceilings, unsuitable, too stiff or not weathering-resistant insulation layers and old wooden beam ceilings with slide-in floors.

Impact noise protection is defined as the protection against noise generated by mechanical stimulation of the raw ceiling, for ex. footsteps. If there is a lack of sufficient impact sound protection, the sound is increasingly transferred into the building structure and transmitted to the adjoining rooms as airborne sound.

In old buildings and for renovation works, there are often planning limits for the floor in terms of installation height and weight per unit area. In such cases, it is important to ensure maximum impact sound improvement with a minimum system construction height.

The standard DIN 4109 "Sound insulation in building constructions" specifies the requirements for impact sound and airborne sound insulation of buildings. It specifies a value (L'n,w) of ≤ 50 dB for flat partition ceilings in multifamily buildings. However, this value can only be met economically with the today commonly used solid-ceilings in combination with a floating screed.

More stringent requirements apply in upscale residential construction. Here, a corresponding construction height for the screed to be installed and a defined weight per unit area must be ensured.

Supplementary to DIN 4109, the guideline VDI 4100 "Sound Insulation in Buildings - Dwellings - Assessment and Proposals for Increased Sound Insulation" regulates the requirements for impact sound insulation of ceiling constructions in residential buildings according to different sound insulation levels.

How quiet would you like it?

Impact sound insulation system from 28 mm

  • reduction of impact sound Δlw up to 17 db with a 25 mm thick screed
  • extremely slim built-up of 28 mm
  • easy and rapid processing
  • with official approval

Impact sound insulation system from 40 mm

  • reduction of impact sound Δlw up to 29 db with a 30 mm thick screed
  • extremely slim built-up of 28 mm
  • easy and rapid processing
  • no official approval necessary

Weber impact sound insulations systems

With our impact sound insulation systems, you have the choice: No matter whether you want to achieve the highest possible impact sound reduction in a project or focus on a particularly slim structure, we have the right solution for you. In addition, both systems are equally uncomplicated in use and processing: both are quickly ready for covering and variable in the top layer. Installation is also quick and easy with both. This processing comfort is further increased by the combination with high performing Weber machine technology.

The processing of both systems is very comfortable and therefore faster and more economical than with conventional systems. The sheets are rolled out and glued butt-joint - there is no need for time-consuming cutting of sheets or levelling of sheet joints.

System with official approval

weber.floor impact sound insulation systems > 28 mm


  1. Substrate: prevailing floor screed

  2. weber.floor 4955: acoustic and de-coupling membrane

  3. weber.floor 4945: woven mesh

  4. weber.floor 4365: thin-layer cement screed

  5. weber.floor 4816:adhesive for PVC design floorings

  6. Final flooring

Documents and brochures