Wood hybrid construction with know-how

fischer facade and fastening systems secure office buildings of A. Pfeiffer Zimmerei GmbH

Wood hybrid construction with know-how
From a small family-run craft business to a technically fully equipped carpentry with expertise in timber and facade construction, A. Pfeiffer has established itself over around 130 years. To continue growing, the owners and employees of the family business run in the 5th generation built a new office building in wood-concrete hybrid construction from November 2019 to December 2020. The building measures 20 by 20 meters and extends over five floors to a height of 17 meters above ground level. The ground floor houses the offices of A. Pfeiffer Carpentry and an event room. Occasionally, the family business also expands its separate facade division for the VHF sector here. On the four floors above are leased office units. In addition, there is a basement where heating and technology as well as storage rooms are located.

Property Profile

Property Type
Office Building
Dimensions
20 x 20 m and 17 m height
Architect
Kerstin Geiger-Pfeiffer (wife of the managing director, co-owner, and freelance architect)
„Own expertise flowed into the realization,“ says Albrecht Pfeiffer, managing director of A. Pfeiffer Zimmerei GmbH and master carpenter. „The design was created by my wife and co-owner as well as freelance architect Kerstin Geiger-Pfeiffer. Our employees manufactured the wall elements in timber frame construction in our own production. They then erected the wooden structure, consisting of the prefabricated timber frame and solid wood elements, on the construction site on location.“ In addition to load-bearing exterior and interior walls, the supporting structure consists of timber-concrete hybrid decks of the upper floors above the ground floor. Fischer screws connect the load-bearing glued laminated timber decks with the composite concrete topping. The stairwell and the basement are made of reinforced concrete. At the top is a glued laminated timber ceiling, which is equipped with pitched ceiling insulation, a bitumen waterproofing layer, gravel covering, and a photovoltaic system.
"To secure the ceramic facade with wooden strips, we decided on substructure solutions from the fischer group," says Markus Messirek, Technical Director of Facade Technology at A. Pfeiffer Zimmerei GmbH. "In addition to the suitable facade systems that combine safety and functionality with a representative appearance of the building, the long-standing trusting cooperation with BWM was decisive for this decision." Uwe Nachstedt, Managing Director of BWM Fassadensysteme GmbH, emphasizes: "We are pleased to have been able to support our specialist partner's construction project from planning and design to successful completion." 
The basic construction for the facade fastening was the proven wall brackets ATK 100 Minor. The ATK 103 was installed on this distance substructure to attach ceramic tiles from the porcelain stoneware specialist Mirage invisibly using clamps and undercut anchors. The wall brackets of the ATK 100 were statically designed and permanently securely fastened with fischer SXR 10 x 60 FUS long shaft dowels. They are made of high-quality nylon with pre-assembled fischer hexagon screws and molded washers. Due to the low anchoring depth of only 50 millimeters, the SXR could be processed very economically when multiple fastening of the VHF substructure was required.
To secure the ceramic facade with wooden slats, we decided on substructure solutions from the fischer group of companies. In addition to the suitable facade systems that combine safety and functionality with a representative appearance of the building, the long-standing trusting cooperation with BWM was a decisive factor for this decision.
Markus Messirek (Technical Director Facade Technology at A. Pfeiffer Zimmerei GmbH)
Overall, the new office building of A. Pfeiffer Carpentry GmbH successfully combines the best properties of concrete and wood intelligently, with both materials jointly bearing the structural loads and ensuring safety, sustainability, modern thermal insulation, as well as a harmonious appearance of the building.
cd-green-55965cdb4b-8kbsh