In an underfloor heating system, insulation is often underestimated, yet it plays a decisive role in energy efficiency and environmental performance. A high-quality XPS board helps prevent heat loss to the subfloor, improving heating efficiency and reducing energy costs. Without proper insulation, even the best boiler and installation workmanship cannot deliver the expected heating results.

Thermal Conductivity

The lower the thermal conductivity, the better the insulation performance.

For energy-efficient underfloor heating systems, XPS boards with a thermal conductivity of ≤ 0.034 W/(m·K) are recommended to effectively reduce heat loss and improve overall system efficiency.

Compressive Strength

Higher compressive strength means stronger load-bearing capacity.

For residential underfloor heating applications, a compressive strength of at least 200 kPa is recommended to prevent floor cracking or settlement during long-term use.

Thermal Resistance

The thicker the insulation board, the higher the thermal resistance and the better the energy-saving performance.

For residential underfloor heating systems, XPS boards should be at least 20 mm thick. Where floor height allows, increased thickness is recommended for improved insulation performance.

Water Absorption

Lower water absorption ensures more stable and durable insulation performance.

XPS boards made from virgin raw materials have a higher closed-cell structure, with water absorption below 1%, making them resistant to moisture and suitable for long-term use.

Environmental Safety

Special attention should be paid to insulation boards made from recycled or low-grade materials, even if they appear white in colour.

High-quality XPS boards made from virgin raw materials are safer, more stable, and free from harmful substances, making them more suitable for residential underfloor heating systems.

Choose the Right XPS Board to Reduce Heating Costs

The performance of insulation materials directly determines the energy efficiency and environmental impact of an underfloor heating system. Poor insulation leads to heat loss and higher energy consumption, regardless of the quality of the boiler or installation process.

Among high-end XPS boards on the market, Earthmother XPS boards stand out with the following advantages:

Why Earthmother XPS Boards

More Environmentally Friendly

Manufactured from crystal-grade virgin raw materials and tested by recognised building material inspection authorities, compliant with relevant construction standards.

Safer Performance

Compressive strength increased by approximately 25%, reaching 250 kPa, effectively reducing the risk of floor cracking or settlement caused by insufficient insulation strength.

More Energy Efficient

Thermal conductivity of ≤ 0.034 W/(m·K) with a well-balanced closed-cell structure, providing reliable insulation performance.

Premium Manufacturing

Produced using advanced non-fluorine, non-bromine technology, without added pigments or plasticisers, ensuring long service life and consistent performance.