The first Kohlbecker building was called „The Human Factory“. Because Karl Kohlbecker wanted to ensure that a good quality of life does not end at the factory gates. That‘s a kind thought. And an entrepreneurial one: because when people feel comfortable, everything runs better. Quality increases, processes become faster, the work succeeds.

Workplace for people:

No compromises have been made in the equipment of each individual desk workstation. All components are individually adaptable to humans. Due to the special geometry of the desk, very advantageous workplace groupings result. The offset of the tables to each other is very pleasant. Direct counterparts are avoided. Instead, harmoniously spacious rooms are created between the desks.

A commitment to resource-saving sustainability:

1. Fast growing bamboo. Hard as solid oak. Now bamboo tops are the new green desktops for Kohlbecker employees.
2. All the decorative acoustic partitions are made of PET felt, which is made from recycled PET bottles.

An echo makes the use of the festival hall of the youth welfare Waldhaus / Waldhausschule in Malsch almost impossible. The echo, or the sound reflections were so high that one could understand nothing more.

How should one get together and make music here? It was impossible!

But there is some help coming: the EnBW #MacherBus not only financially supports Waldhaus Jugendhilfe with the acquisition of new sound-absorbing elements, but the EnBW makers also undertake the attachment of the elements. With the new room acoustics measure the children of the Waldhausschule can use the hall again in peace and quiet.

Vital-Office also supported this project, supplied the vitAcoustic Frames for optimum sound absorption and led the assembly.

Links:
https://www.enbw.com/wir-machen-das-schon/aktionen/macher-bus/der-enbw-macher-bus-in-malsch/index.html
http://www.jh-waldhaus.de/Aktuelles-Reader/items/projekt-echo-durch-macher-der-enbw-erfolgreich-bewaeltigt.html

In order for a room acoustic measure to be calculated and assessed realistically, well-founded acoustic physical basic knowledge and practical experience is appropriate. In particular, the initial values of reality must be determined accordingly. For sensitive areas, the measurement should be carried out professionally by an acoustic expert. Alternatively, at least a provisional measurement should be performed with a phone app repeatedly. The provisional measurement serves only as a guideline for the selection of the room materials and their absorption coefficients in the acoustic calculator. Basically, any calculation without professional measurements of the initial situation is hypothetical!

Example:

Low frequencies are absorbed differently than high frequencies. Glass surfaces (Windows) or a normal office cabinet made of chipboard in different thicknesses, when you hit the resonance of the deep tones, can act for the low frequencies absorbing. However, a correct calculation is hardly possible due to the lack of measured data of the objects. On the basis of a measurement, special depth absorbers (vibrating resonators) need to be specifically set.

The calculations are based on measured data from objects and materials. Some of these are listed in the DIN 18041 exemplary. Others are taken from various sources for their correctness and conformity with the actual existing object or material there is no guarantee.

• Area is important-small elements, for example, are simply overlooked by lower frequencies due to the long wavelength. Even with a-class absorbers, an adequately large absorbing surface is required in relation to the size of the room. In communication rooms, absorbers on the ceiling are sparingly and consciously dealt with. Here is more of a reflection desired!