A commitment to sustainable construction and future-ready material concepts. At the Climate Festival, the focus was on concrete contributions to the construction transformation and open dialogue.
Press Contact
Bettina
Dal Mas
Chief of Staff (Growth)
dalmas.bettina@otto-lehmann-gmbh.de+49 171 907 88 30Lehmann was an official festival partner of the Climate Festival for Construction Transformation in 2025. On 19 November 2025, we participated in the panel discussion on Circular Construction & Material Cycles. We presented how roofs and roof elements can function more resource-efficiently in the future, helping to set new impulses together.