The Material

The maximum compressibility of Regufoam® sound and Regupol® sound in accordance with general construction guidelines is between  ≤ 0.8 and ≤ 2.0 mm, depending on the type.

With a load of 30 kN/m², the deflection of the insulating material Regupol® sound 47 is only 1.6 mm.

The loads on floor surfaces which have been impact-insulated with Regufoam® sound and Regupol® sound can be accordingly high without the danger of causing damage to the screed or connection joints which have the proper dimensions. Thanks to the outstanding long-term behaviour of the material, which was demonstrated by a long-term creep test with 12 million stress cycles, among other tests, its properties, such as resilience level and impact sound improvement, remained constant over a very long time period (approx. 50 years).

Resilience is at least 95%. The General Technical Approval ensures that the measured impact sound insulation values remain permanently constant.

The elastic behaviour of Regupol® and Regufoam® screed insulation demonstrates that the material retains its properties and is not damaged by high loads. These enormously important material properties can only be achieved with comprehensive quality assurance, from incoming goods inspection of the raw materials through to the impact sound improvement tests in the laboratory of the Testing and Certification Agency. For this reason it does not make sense and is even dangerous to use products that have not been specifically developed for impact sound insulation.

In addition to outstanding physical properties, Regupol® and Regufoam® screed insulation also possesses highly important chemical properties. The applications of industrial floors very frequently also require resistance to lactic and fatty acids. What is more, resistance to the standard industrial and cleaning agents is an absolute must.

Graphic Elastic Behavior Regupol Under-Screed Impact Sound Insulation
Even with a heavy load, Regupol® and Regufoam® screed installation sinks in without the structure of the material being destroyed (the deflection shown here is exaggerated).
Graphic Deflection Regupol Under-Screed Impact Sound Insulation
When the load is removed, the material returns almost to its original thickness. The impact sound insulation remains constant for the long term.