Christophe Lenderoth GmbH

The façade specialist Christophe Lenderoth GmbH has made a pioneering move in the energy efficient refurbishment of its administration building in Bremen, Germany. The original aluminium and glass façade has been dismantled, fully recycled and used to manufacture a new façade. Focusing on the concept of the circular economy, Lenderoth has carried out a complete façade revitalization together with its partners WICONA and Saint Gobain Glass.

Firstly, the old façade was dismantled and sorted by material. The aluminium elements were transported to the Hydro recycling and sorting facility Dormagen, where they were reprocessed as part of the recycling process and subsequently extruded into new aluminium profiles. The process was similar for the collected glass.

The new façade was implemented with a WICONA WICTEC 50 HI mullion-transom construction with clamped WICLINE 75 TOP window elements, made from the aluminium alloy Hydro CIRCAL 100R. This consists of 100% recycled end-of-life aluminium and has the lowest CO2 footprint in the world - with less than 0.5 kg CO2 per kg of aluminium. The glazing manufactured by Saint Gobain Glass from the CO2-reduced glass ORAÉ has a low CO2 footprint of just 6.64 kg CO2 equivalent per m² (with a glass thickness of 4 mm). Thanks to the pioneering concept, the façade revitalization was carried out almost entirely from secondary raw materials - saving a total of 24.6 tons of CO2.

WICONA used systems:

WICTEC 50 HI

WICLINE 75 TOP