WATERPROOF MEMBRANES | MATERIALS


Moisture barrier: latest in waterproof membranes


Developments in waterproof membranes include an award- winning, slip-resistant walkway, a geomembrane for a German landfill site and a new roof for a Dutch logistics hub


Waterproof membranes – typically for roofing, but also for ground-based applications such as landfill sites – ensure that moisture ingress is kept to a minimum. However, they can also incorporate properties such as cooling. Renolit Alkorplan has supplied 80,000 sq m of


its roofing membrane for a new logistics hub in the Netherlands. Evo Park Weert, built on the site of a former Philips Lighting factory, was designed to challenge the status quo of ‘grey’ logistics by harmonising ‘high-capacity industrial needs with a respect for the environment and the local community’. While the roof currently has solar panels, the 80,000 sq m waterproofed surface has been structurally and technically prepared to accommo- date a huge solar expansion. The membrane itself has FM approval – from property insurer FM Global – to certify that the


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roofing assembly has passed rigorous tests for fire and wind resistance. The installation helped achieve the project’s goal of a BREEAM Excellent certification. “Choosing an FM-approved assembly means the developer is investing in the highest level of risk prevention available,” said Jennifer Witty Che, sustainability manager of Renolit Alkorplan roofing products.


At the same time, the company’s slip resistant walkway membrane has won an Archiproducts Design Award. The product’s performance has a slip resistance


rating of PTV > 36 and an R13 classification, which ensures safety even on inclined surfaces. It is also compatible with the company’s Bright, Smart and Classic membrane ranges – providing additional protection to the underlying waterproofing layer. “We are delighted to receive this recognition,


May/June 2026 | FILM & SHEET EXTRUSION 37


Main image: A new logistics hub in the Netherlands uses 80,000 sq m of Renolit roofing membrane


IMAGE: RENOLIT


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