We are proud to announce that Leadax will take part in Smart City Day 2025 in Hamburg, one of Europe’s leading events on innovation, sustainability, and the future of urban living. This year’s edition will bring together policymakers, architects, engineers, entrepreneurs, and sustainability experts to discuss how cities can become smarter, greener, and more resilient.
Our founder, Roeland van Delden, will be one of the keynote speakers at this inspiring event.
A Keynote on Circular Innovation
During his presentation, titled “The Transition to a Circular Economy: Turning Waste into Value”, Roeland will share the story of how Leadax has grown from an innovative idea into a global leader in circular building materials.
The focus of his talk will be on our groundbreaking use of recycled PVB, a waste product from the glass industry that typically ends up in landfills. Instead of letting this valuable resource go to waste, we transform it into high-performing waterproofing solutions for the construction sector.
Why This Matters for Cities and the Planet
The construction industry is one of the largest consumers of raw materials worldwide. By rethinking how we design and use materials, Leadax is proving that the sector can be part of the solution to climate challenges rather than part of the problem.
Roeland will explain how our approach helps:
- Reduce waste by giving new life to materials that would otherwise be discarded.
- Lower demand for virgin raw materials, easing the pressure on natural resources.
- Build resilience and economic strength within the construction industry by creating value out of waste.
- Support a truly circular economy, where sustainability, innovation, and profitability go hand in hand.
This vision fits perfectly with the theme of Smart City Day: creating cities that are not only technologically advanced but also socially responsible and environmentally sustainable.
Event Details
Date: September 10, 2025
Location: Cruise Center Baakenhöft, HafenCity Hamburg
