.

Fig. 23: The six-storey residential and office building in Munich-Lehel with seven apartments and six office units across a total floor area of 1,350 m² achieves a heating requirement of just 22 kWh/m² p.a.
© Sascha Kletzsch, München

Fig. 24: The thermographic image does not show any deficiencies.
© ZAE Bayern

Fig. 25: Large glass surfaces on the building’s rounded corners – where there is least shading – are designed to maximise solar heat gain.
© Michael Heinrich, München
10 / 17

In practice II: New residential and office building

The residential and office building in Munich is the first large-scale building to be entirely insulated with VIPs. The main motivation for deploying VIPs was the economic advantage of having more space as a result of using slim facades. The increased solar gain and the improved views as a result of thinner jambs and reveals were also reasons. The VIP insulation, which has a thickness of just 2 cm, is combined with a strengthened 8-cm-thick plaster base panel. This composite thermal insulation system provides the mechanical and weather protection for the VIPs and provides an insulation cover for thermal bridges at fixing points and connections. With conventional thermal insulation materials, a layer thickness of 25 cm would have been necessary to achieve a comparable thermal insulation value.

The structural system newly developed for this project is based on an already existing system with a national technical approval for a TICS with PU insulation on a frame construction. It was possible to supplement this with relatively little effort by gaining individual approval for the VIPs. Other systems have essentially failed because of the cost and time spent on testing procedures that are required for approval in individual cases. The building wasawarded the German Building Physics Prize in 2005, received a commendation in the 2006 Bavarian Energy Prize awards and was awarded the dena “Energy efficiency and good architecture” prize in 2009. This building was also monitored as part of the VIP-PROVE project. Of the 750 m² of installed VIPs, approximately 450 m² were accessible for taking thermographic images. Not one of these panels was classified as aerated.

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