WTA-Days 2025 in Hamburg
Dear members of the WTA International,
Honoured guests of WTA International,
The WTA Days 2025 in Hamburg on 13/14/15 March 2025 are now over. We were able to welcome guests to the General Assembly and the colloquium at the Lutheran Church of St. Catherine. A very special and historic setting for our event.
During the General Assembly, the WTA International elected a new board. Since Prof. Dr.-Ing. Harald Garrecht and Prof. Dr.-Ing. Heinrich Wigger did not stand for re-election, Prof. Dr. Alexandra Troi was elected as the new President and Dr. phil. Kristina Holl as the Vice President for Finance. Dr. Johannes Maier and doc. Ing. Nikol Žižková were confirmed in their positions.
The Annual General Meeting concluded with an evening event in the ‘Kessselhaus’.
On Friday, the winners of the WTA Young Professional Award were honoured. This was followed by the WTA colloquium ‘Climate protection and resource conservation in historic buildings’.
The weather was also on our side for the excursion on Saturday. During a tour of the Speicherstadt and the Maritim Museum, the participants learned many historical details from the city's former conservationist, Mr Alfred Schett.
Harald Garrecht presented the practical background to his lecture ‘CO-2 neutral World Heritage Speicherstadt Hamburg - Supplying buildings with latent heat from the environment’ in the research workshop. Mr Dipl.-Ing. Architekt Frank Weitendorf (Winking · Froh Architekten GmbH) gave a tour of the former Spiegel publishing house, designed by the architect Werner Kallmorgen and featuring interior design by Verner Panton, and explained the most important aspects of the renovation.
We would like to express our sincere thanks to Mr Weitendorf for this offer, as well as to Mr Schett for his tour of the Speicherstadt.
The excursion ended with a harbour cruise in glorious sunshine.
Conference programme colloquium - Friday, 14.03.2025
| 08:30 - 09:00 | Arrival and registration |
| 09:00 - 09:15 | Welcome and opening |
| 09:15 - 10:00 | WTA - Young Professionals Awards |
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10:30 - 12:00 | Session 1 - Strategies for climate protection and climate adaptation in listed buildings Strategien zum Klimaschutz und zur Klimaanpassung im Denkmalbestand (Moderation: Harald Garrecht) |
| 10:30 | National and European strategies for the adaptation of listed buildings |
| 11:00 | Climate change and cultural heritage - impact and options for action |
| 11:30 | Between heritage and innovation: Municipal Monument Concepts for the energy transition in Bavaria |
| Lunch break |
13:00 - 15:00 | Session 2 – Energy-efficient refurbishment of listed buildings |
| 13:00 | New insulation systems for the restoration of energy-efficient and resource-saving half-timbered houses |
| 13:30 | Mineral aerogel-based high-performance insulating plasters |
| 14:00 | Building materials from the moor in use |
| 14:30 | Stamped clay - old material in new buildings from the perspective of the structural engineer Stampflehm - alter Werkstoff in neuen Gebäuden aus der Sicht des Tragwerkplaners |
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15:30 - 17:00 | Session 3 – Systemic heat supply approaches for climate-neutral buildings and neighbourhoods |
| 15:30 | Cold district heating net - renewable energies supply buildings and neighborhoods |
| 16:00 | CO-2 neutral world heritage Speicherstadt Hamburg - Supplying buildings with latent heat from the environment |
| 16:30 | Transformation towards a carbon free built environment |
| 18:00 | Ende of the event |