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With the construction of a state-of-the-art logistics centre in Langenau, Germany, the owner Dietz AG is setting new standards in sustainability, efficiency, and technical precision. The flat roof, with an impressive area of around 68,000 m², is not only architecturally striking but also meets the highest functional requirements. For waterproofing this flat roof, the proven SURE-WELD® TPO membranes from CARLISLE® were used – a system known for its durability, environmental friendliness, and ease of installation.
New Logistics Centre
Langenau, Germany
68.000 m²
SURE-WELD® TPO/FPO
Erlich & Samochin Bedachungen GmbH,
32107 Bad Salzuflen
Max Bögl Bauservice GmbH & Co. KG,
92369 Sengenthal

There were multiple challenges during the construction of the l ogistics centre. Waterproofing 68,000 m² of roof area required meticulous planning, precise coordination of trades and consistent quality control, all while adhering to a strict schedule in changing weather conditions. SURE-WELD ® TPO membranes and the effective collaboration of all stakeholders involved made this possible.
SURE-WELD® is a high-quality, single-ply waterproofing membrane made of TPO (thermoplastic polyolefin) with an internal polyester fabri creinforcement. It is available in white or gray with widths up to 1.82 m. Its wide welding window and high seam strength reduce err or risks and construction time – ideal for large industrial and commer cial roofs. The sustainable membranes feature a unique weathering protection, making them resistant to weathering and aging for decades, and thus suitable for permanent use under PV systems. They are root-resistant according to DIN EN 13948:2007 and F LL certified for use under all types of green roofs. FM Approval certification provides globally recognized quality assurance.
The client relied on the security of a waterpr oofing product proven for over 20 years: SURE-WELD® already protects over 500 million square meters of roof surfaces worldwide. A showcase project for climate-friendly construction, where the product could fully demonstrate its advantages – simple, fast, and safe installation for long-term r oof protection and use under a PV system.
SURE-WELD® accessories such as composite sheets, prefabricated sleeves, and drains ensure sustainable system sealing.