12.5mm Marmox Multiboard 1.2m x 600mm

Marmox Multiboard is a waterproof insulation board that also works as a solid backing for tiles, plaster, or render. The surface is ready to tile or finish straight away, and it’s commonly used in bathrooms, wetrooms, kitchens, and other areas where moisture protection and insulation matter. Lightweight but rigid, Marmox Multiboard helps create a stable base while also improving insulation, making it a practical choice for both refurbishments and new installations.

Benefits

• 100% Waterproof
• Helps reduce heat loss and improves energy efficiency, especially when used with underfloor heating.
• Ready-to-Finish Surface
• Simple to handle and cut to size with minimal dust, speeding up installation on site.
• Provides a stable backing that helps reduce movement and protects finishes from cracking.
• Suitable for walls, floors, ceilings, partitions, boxing-in, and bespoke construction details.

Good to know

• 12.5mm thickness - Ideal where space is limited and a slim waterproof tile backer or insulation layer is required.
• 20mm thickness - Offers enhanced insulation and rigidity, perfect for colder walls, floors, or higher-performance applications.
• Boards can be fixed using adhesive, mechanical fixings, or both, depending on the substrate.
• Suitable for internal and external use when finished appropriately.
• Eliminates the need for separate waterproof membranes in most wet areas.