62 BATHROOMS & KITCHENS FOCUS Future-Proofi ng Wet Rooms and Bathrooms
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nsuring compliance with current and upcoming legislation is a critical focus for architects and specifi ers aiming to create
sustainable, future-proofed buildings. One such area of increasing importance is waterproofi ng in wet rooms and bathrooms, with the NHBC Technical Guidance 9.2/06 now setting stricter requirements. From 1 January 2025, any new-build project requiring an NHBC warranty must comply with these updated guidelines, ensuring the longevity and integrity of the building’s structure. Under the new guidance: • Magnesium oxide boards must not be used as a tiling substrate.
In wet rooms or bathrooms with power showers, only tile backer boards with acceptable technical approvals are permitted.
• All waterproofi ng systems must be backed by appropriate third-party certifi cations acceptable by NHBC and must also be fully compatible with the tile, adhesive, and grout selected for the project.
A PROVEN SOLUTION FOR NHBC COMPLIANCE For specifi ers seeking a fully certifi ed, systemised waterproofi ng solution, wedi’s XPS boards and shower formers provide a reliable answer; they not only enhance both performance and effi ciency, but are also fully compliant with NHBC’s updated technical guidance. The key certifi cations these tried-and-tested materials carry include: • European Technical Approval (ETA) • Environmental Product Declarations (EPD)
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• A+ VOC label for indoor air quality • CE, UKCA, and UKNI markings • BBA certifi cations
SIMPLIFYING SPECIFICATION WITH A COMPLETE WATERPROOFING SYSTEM wedi building boards off er 100% waterproof performance, creating a seamless, modular system that reduces installation steps while minimising the risk of failure. Supporting up to 133 kg/m², they are suitable for all tile formats including natural stone, and with a U-value of 0.036 W/mK, they also contribute to energy effi ciency by preventing heat loss, making them an ideal substrate for under-tile heating (UTH) systems. The range includes interlocking XPS components such as fl oor-level shower elements, benches, niches and partition walls. Since joining the Ardex Group in 2021,
wedi can also off er compatible adhesives and grouts with a comprehensive 10-year product warranty covering everything beneath the tiles – ensuring a single-source solution with complete manufacturer accountability.
SUPPORTING FUTURE HOMES STANDARDS With the Future Homes Standard coming into eff ect in 2025, all new homes must be designed with improved energy effi ciency to reduce carbon emissions by 75–80%. While waterproofi ng itself does not directly reduce carbon emissions, wedi’s solutions create the optimal conditions for integrating energy- saving technologies. For example, wedi PreLine building boards with factory-cut grooves for precise pipe
installation, improve heating system response times by up to 70% – ideal for supporting heat pump-operated water heating systems.
FLEXIBLE, FUTURE-PROOFED DESIGN WITH FUNDO SOLUTIONS wedi’s Fundo range off ers fl oor-level shower elements that provide fl exibility in design and ease of installation while maintaining full NHBC compliance. The latest Fundo Flex system however, introduces an entirely new level of adaptability: • A fully adjustable channel element that can be positioned along the long or short side, close to the wall, centrally, or anywhere in between.
• Stepped rebates for precise integration of the complementary sloping boards ensuring a fully sealed, level shower fl oor.
• Flexibly customisable components – the channel element, the slim channel profi le as well as the sloping boards can be cut, and arranged to form a tailored solution.
TRUSTED COMPLIANCE, STREAMLINED SPECIFICATION With over 40 years of industry expertise, wedi continues to set the standard for waterproofi ng, insulation, and energy-effi cient solutions in wet rooms and bathrooms. By simplifying specifi cation and ensuring full NHBC compliance, wedi products allow architects and specifi ers to focus on design, confi dent in the long-term performance and sustainability of their projects.
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