Eden Tower: Europe's Tallest Green Wall Landmark

Building new homes and adding more flora to the city than what could fit on the same number of square feet of land; that is the ideal future of the city! One of the tallest green wall projects in Europe has recently been installed in the center of Frankfurt am Main, proving that this ideal is already possible.

High-Level Challenges

This marks the first instance that a green facade has been implemented at such an elevation. To achieve the desired outcome, numerous challenges had to be surmounted. This led to new innovations in the execution of this distinctive project. As the greenery stretches from the ground level to an impressive height of 98 meters, the living wall faces strong winds on the upper levels. To prevent the plants or other components of the green wall from detaching, the Flexipanel – the foundational element of the green facade – has undergone testing and received approval for its wind load resistance.

Smart Irrigation at Every Altitude

Another challenge was the temperature variation, as the temperature decreases with increasing altitude. This impacts the water requirements. The plants are irrigated using an automated system. If the entire green strip were to be watered uniformly, it would not be efficient. To distribute the correct amount of water precisely, an advanced irrigation system equipped with temperature sensors and multiple water groups is utilized. In this manner, each plant receives exactly what it requires.

Constructing new homes while incorporating more greenery than the land below them represents the future of our cities.

Fire Safety Innovation for High-Rise Greenery

Moreover, the potential risks associated with high-rise fires are significant. To comply with the most stringent building code requirements, a new version of Flexipanel has been developed for this green wall and future endeavors. In an independent evaluation, the panel was tested for, among other factors, the rate of heat release and flashover. The Flexipanel has achieved the fire safety certification A2-s2,d0. This indicates that the panels contribute minimally or not at all to the initiation of a fire, do not produce molten parts, and emit only light smoke. Thus, the SemperGreenwall system satisfied the rigorous standards, enabling its application at significant heights. The specialized installers from Sempergreen Group mounted the facade throughout 2021 and 2022. By employing a facade lift, even the highest floors were accessible for a high-quality finish.