Nauenstrasse, Tann ZH

The project
The planning of the project was a small family plan of the Timbatec employee. The architect in charge and the civil engineer are siblings of one of the employees. The building is built as a wooden structure from the floor slab. The solid wooden ceilings rest on the interior load-bearing axes and exterior walls. The cantilevered balconies were all constructed without columns. All beams and columns, as well as the ceilings, are visible and were treated with a UV protection with a light white content. Timbatec was responsible for the entire timber structural design, the detailed design and the fire protection design including quality assurance.

The construction
From the floor slab onwards, the building is a pure timber construction. The elevator shaft and staircase are also made of wood. The escape staircase is a steel construction. The timber construction was realized very efficiently. The three interior load-bearing axes with beams and slabs as single span beams are visible. The ceiling span 4.0-4.5m is optimal. The supporting axes with beams are supported every 3.5m.

The challenge
The challenge was the cantilevered balconies with 90 degrees against the span direction of the slabs. These were executed with load-bearing balcony parapets anchored in the exterior walls.