Top Acoustics for Logistics Company
The installation of an acoustic design ceiling enormously upgrades the ceiling design both in terms of appearance and performance. In the new company headquarters and development centre of the Graz-based KNAPP AG, an aesthetic, functional ceiling was installed covering an area of 8,900 m². The acoustic design ceiling was produced by the ceiling manufacturer Vogl Deckensysteme of Emskirchen, Germany.
The Styrian logistics company KNAPP AG had a seven-storey new building erected in Hart near Graz in a construction time of one year. The modern structure – in reinforced concrete skeleton construction – has a total useful area of 12,000 m² and is clad with a curtain-type glass facade. Due to the orientation of the building, this reflective glass facade facing the street allows plenty of daylight to enter the interior. "In addition, the glass facade has been equipped with light sources that can be switched on and off", dry construction contractor Manfred Schreiner explains. The renowned media artist Univ. Prof. Mag. Richard Kriesche, who was recruited for designing the interior, has lent an artistic touch to the "world of warehouse logistics".
The conceptual design of the building project comes from the creative mind of the architect Wiesenhofer from Graz. The project management was in the hands of the local team Eichholzer/Walluschek, and Egon Frühwirth was the site manager. Dry construction contractor Schreiner GmbH was responsible for the ceiling design.
A logistics business works in a time-oriented manner and needs optimum traffic connections for this purpose. This is why the new administration building is located at the motorway access of Graz Eat that leads over to the A2 southern motorway. The headquarters building is equipped with open-plan offices and dedicated rest zones as well as with conference rooms and some individual closed office spaces. In order to achieve a high-end spatial enclosure on all levels, frameless, recessed luminaires without bottom cover angle were installed as basic illumination. Moreover, every workplace has its own mobile floor lamp that illuminates the workplace directly or indirectly and is automatically activated by a motion detector.
Room air and room acoustics
An ideal office atmosphere depends on a number of factors: On the one hand, on the interrelation of temperature, humidity, air quality and air movement, and on the other hand on the interaction of physical, biological and chemical influences. For example, a person with sedentary occupation evaporates almost one litre of water, an active person up to 2.5 litres, per day. The relative humidity is between 20 and 70%. However, experts recommend a humidity of 50%. But the air mix also plays an important role. We feel most comfortable in rooms with a share of 78% of nitrogen, 21% of oxygen, 0.03% of carbon oxide and 0.93% of noble gases. The room temperature should be around 21° to 22° Celsius and not exceed 26° Celsius in summer.
Type of object: Administration building
Client: KNAPP AG, Hart / Graz (Austria)
Area: 8,900 m²
Vogl products: Acoustic Design Ceilings
Completion: 2010
Photographer: Walter Henisch
Architects: Architekten Wiesenhofer, Graz
Project management: Eichholzer / Walluschek
Site management: Egon Frühwirt
Ceiling contractor: Schreiner GmbH
Vogl Technical consulting: Michael Buchegger
Aesthetic-functional room quality
The ceiling structure chosen for the building was an acoustic design ceiling laid out for an area of 8,900 m², made by Vogl Deckensysteme. It has the advantage that a homogeneous, seamless ceiling surface can be achieved by means of the perforation recurring in regular intervals. It is highly effective in terms of acoustic performance and has an integrated air purification function. Thus, it ensures an aesthetic-functional room quality with positive effects on indoor climate and communication. The perforated ceiling panel with high sound absorption capacity is made of gypsum plasterboard, a sustainable and environmentally friendly material. "Large rooms in particular need ceilings with extremely sophisticated acoustics and adequate noise reduction qualities", Benedikt Roos, product manager of Vogl Deckensysteme, says and adds: "A great selection of various acoustic design panels backed with acoustic fleece is available to achieve an optimum room acoustics ceiling design. The rated sound absorption coefficient (αw) is of great significance here. It is broken down in absorption classes A to E. Absorption class E begins with 0.15, absorption class D with 0.55, absorption class C with 0.60, absorption class B with 0.80 and absorption class A with 0.90. The high acoustic performance of an acoustic design ceiling makes such a ceiling the non-plus-ultra in dry construction!"
In this case, the dry construction contractor Schreiner used the design-relevant acoustic design panels with a perforation of 6/18 backed with black acoustic fleece, mounted to a rigid ceiling framework and subsequently sealed with joint compound. At the end of the dry construction work, the ceiling presented a homogeneous appearance that durably enhances the feel-good factor of the building in terms of design and function.
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