Landratsamt, Meißen

Fifteen years after its renovation, the 425-square-meter glass roof over the Meissen District Office received an energy-efficiency upgrade.

Sustainable and Efficient

Fifteen years after its renovation, the 425-square-meter glass roof over the Meissen District Office received an energy-efficiency upgrade. As part of the roof renovation, the opportunity was taken to install glass panels with integrated PV cells on the atrium.

Project

Landratsamt Meißen

Location

Meißen

Client

Landkreis Meißen

Execution

INDU LIGHT

Products used

INDU LIGHT sets accents

Glasline Post-and-Beam System

The flexible post-and-beam glass roof system with slim profiles, customizable glazing, and integrated ventilation, smoke and heat exhaust, and shading systems.

Learn more

The varying degrees of transparency in PV cells allow PV glass to be used as a design element in modern architecture

Environmentally conscious builders are increasingly turning to sustainable raw materials and renewable energy sources. This trend has now extended to low-slope roof areas as well. These roof areas are virtually ideal for the installation of photovoltaic systems. Through careful planning, skylights and PV systems can not only be installed side by side but also seamlessly integrated. This allows for the creation of solutions that are both aesthetically pleasing and sustainable for modern architecture.

Glass Roof Renovation During Normal Operations

For the energy-efficient renovation, INDU LIGHT developed a customized daylighting solution that not only creates a bright atmosphere inside the building but also contributes to sustainable electricity generation. 106 glass panels form the atrium above the district administration office on Brauhausstraße in Meissen. The PV glass modules, each approximately 3 m² in size, provide sufficient daylight for a bright atmosphere thanks to a coverage ratio of about 60%.

The covered courtyard, which serves as a lounge area, was to remain fully accessible to visitors during the renovation. Consequently, the renovation work had to be carried out largely from the outside and under heightened safety precautions.

An additional challenge was to preserve the existing substructure of the glass roof system and integrate the new glazing. To achieve this, the existing glass panels and ventilation flaps were separated from the primary structure and replaced with new panels featuring integrated PV cells.

Due to the limited load-bearing capacity of the existing substructure, double-pane insulated glazing was used. With a reduced weight per unit area, the requirements for fire safety and energy efficiency are met equally, and U-values of up to 1.1 W/m²K are achieved. In addition to load-bearing capacity, the concealed integration of electrical wiring also played a central role in the planning and implementation.

Sustainable Glass Roof Architecture

In addition to providing better thermal insulation and a long service life, glass is also resistant to weathering. In the event of a defect or at the end of its service life, individual glass panes can be replaced and returned to the material cycle. The integration of PV cells between the glass panes also creates an alternative to traditional PV systems without adding extra weight. With a variable coverage ratio ranging from 50% to 89%, this offers a variety of design options for skylights.

Impressions

Contact

Do you have questions about industrial buildings?

We support you from the initial concept through to implementation—with well-designed daylighting systems and technical precision. Contact us for a personalized consultation.