THE "EIERHÄUSCHEN" - CONCEPT FOR USE
The future usage concept envisages use of the Eierhäuschen as a restaurant, event and art exhibition building.
Temporary apartments are also planned for artists on the upper floors of the building. The kitchen required for the restaurant will be built in a separate new building, which is to be connected to the Eierhäuschen via a corridor. A bar pavilion will also be built on the property to enable the future beer garden to be used.
In essence, the renovation of the Eierhäuschen comprises the following areas:
- Public development
- Pollutant clean-up and dry rot remediation
- Roof renovation / renewal
- Ceiling beam renovation / renewal
- Masonry renovation
- Facade renovation
- Window renovation
- Technical building equipment
Consultant engineers IDS GmbH were commissioned with the specialist planning of the technical building equipment for the project. Due to the long vacancy, a complete reinstallation of the entire building technology is required. The engineering office is relying on LINEAR software solutions for the implementation.
BUILDING SERVICE PLANNING
Plant engineering is of particular importance in the renovation of listed buildings, as the work on the building shell is limited due to the need to preserve the building fabric. The heat in the Eierhäuschen is generated by a modern gas condensing boiler, which must be housed in the existing basement. Due to the low room height and the existing cap ceiling, special attention was paid to avoiding conflicts in the routing of cables by the trades. Construction tool LINEAR Design 3D Pipe & Power proved to be particularly helpful here.
Heat transfer in the individual rooms is mainly via tube radiators. Underfloor heating was also used in rooms where the floor structure permits. The connection of the individual heating surfaces turned out to be particularly demanding, as they should not be conspicuous in the rooms. Since laying them under the plaster could endanger the building structure and positioning on top of the plaster could impair the appearance of the room architecture, the piping was installed in coordination with those involved in the construction. In addition to the requirements for monument protection, a variety of floor structures also had to be taken into account.
Due to the temporary use of the apartments on the upper floor of the building and the limited demand for hot water in the mainly public sanitary areas, decentralised hot water generation was employed, using a flow heater. The determination of the room heating loads and design of the heating surfaces was carried out quickly and efficiently with LINEAR Building. The radiator dimensions could be adapted without any problems occurring with the ongoing adaptation of the floor plan and user specifications.
The two large event halls in the Eierhäuschen are mechanically ventilated. This is achieved with two central ventilation devices with integrated heat recovery in the roof space above. The air supply is via slot diffusers, which had to be integrated into the ceiling structure in accordance with historic regulations. The greatest difficulty, however, was installing the HVAC components whilst taking into account the space available in the attic. Here, too, the LINEAR software solutions make efficient planning with maximum detail possible.
Planning the HVAC plant in the newly built kitchen cube turned out to be especially difficult. The plant had to be housed in a small room on the top floor. This was more difficult because the space above is very limited by the sloping roof. A 3D representation of the ventilation plant and ducting was essential here. The detailed calculations allowed the dimensioning to be optimised by taking account of the limited space available.