Marmox insulation board from Warmup Australia improves the performance and efficiency of electric underfloor heating by directing warmth upward into the room rather than downward into the slab. Completely waterproof, load-bearing, and compatible with all Warmup heating systems, Marmox insulation boards provide a durable and efficient solution for modern flooring systems.
From our Australian warehouse
Before and after install
Marmox insulation boards, available from Warmup Australia, sit between the concrete slab and heating system to direct all energy upward into the room, reducing heat loss through the slab and delivering measurable power bill savings over time.
Featuring an XPS closed-cell waterproof structure, Marmox boards resist moisture and rot, making them ideal for tiled bathrooms and wet area applications. With a compressive strength of 30 tons per square metre, structural integrity is fully maintained under load. Boards also provide acoustic benefits, reducing footfall noise and echo by up to 20 decibels in large tiled areas.
Heat-up performance is notably fast: floor tiles reach the desired temperature in approximately 15–20 minutes on a cold concrete slab, while tiles over a timber floor warm at around 2°C every 10 minutes from startup.
Sourcing Marmox insulation boards through Warmup means your insulation, heating element, and thermostat come from a single supplier, simplifying specification and providing one point of contact for technical support across the entire installation.
Engineered for bathroom floors and general heated floor applications, this rigid XPS insulation board acts as a high-performance thermal barrier between your concrete slab and heating system, directing all warmth upward. Its waterproof, closed-cell structure completely resists moisture and rot. With a massive compressive strength of 30 tons per square meter, it provides an ultra-stable, load-bearing base perfect for tile finishes and wet areas. It dampens footfall noise and tile echo by up to 20 dB and is fully compatible with all Warmup heating systems.
The efficiency of an electric underfloor heating system depends significantly on how well heat is directed toward the room above — not lost into the substrate or slab below. Warmup recommends Marmox insulation boards in the following scenarios:
Warmup supplies Marmox insulation boards alongside the full Warmup underfloor heating range. Contact our Australian team for a complete specification including insulation, heating, and thermostat products for your project.
A: Insulation significantly improves the performance of any underfloor heating system. Marmox boards are placed between the concrete slab and the heating system to create a thermal barrier, directing all energy upward into the room rather than letting it disperse through the slab. This directly reduces running costs and speeds up heat-up time. Warmup’s technical team can advise on the right insulation specification for your project.
A: Yes. The XPS closed-cell structure of Marmox boards is completely waterproof and will not absorb moisture or rot, making them well suited to wet area applications including shower bases and bathroom floors.
A: After switching on the heating system, floor tiles will reach temperature in approximately 15–20 minutes on a cold concrete slab. On a timber floor, you can expect a temperature rise of around 2°C every 10 minutes from startup.
A: Yes. Marmox boards provide excellent acoustic properties, particularly for reducing footfall noise and the echo commonly associated with large tiled areas. They can reduce sound by up to 20 decibels.
A: Marmox boards have a compressive strength of 30 tons per square metre, ensuring the structural integrity of the floor is maintained under load.
