Thermo underfloor board panel

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The Thermo underfloor insulation – the latest revolution

Introducing our latest innovation in home insulation: an under-floor insulation product made from Insulated Concrete Forms (ICF). This cutting-edge solution offers unparalleled thermal efficiency, ensuring your home remains warm in the winter and cool in the summer. Our ICF insulation not only provides superior energy savings but also boasts remarkable durability and soundproofing qualities. Easy to install and environmentally friendly, this product is designed to enhance your living comfort while reducing your carbon footprint. Experience the next level of home insulation with our ICF under-floor insulation, where performance meets sustainability.

Floor insulation Thickness Thermohouse U-Value
EPS 160 cm 0.18
EPS 170 cm 0.17
EPS 200 cm 0.15
EPS 250 cm 0.00


Thermo UnderFloor Insulation is very adaptable and can be cut to various thickness levels in increments of 10cm.


Floor insulation Thickness Increments
Underfloor Insulation 50cm up to 250cm 10cm

Design process of the new Thermo Under Floor Insulation product

The design process of our ICF under-floor insulation board began with a comprehensive analysis of the needs of modern homeowners for energy efficiency, durability, and sustainability. Our team collaborated to develop a product that seamlessly integrates the robust, insulating properties of Insulated Concrete Forms with an easy-to-install format. Through rigorous testing and prototyping, we optimized the thermal resistance and structural integrity of the board, ensuring it meets the highest standards of performance. Environmental impact was a key consideration, leading us to select an eco-friendly manufacturing process.

The ICF under-floor insulation board is produced using high-quality Expanded Polystyrene (EPS) beads, renowned for their exceptional insulating properties and lightweight nature. In our state-of-the-art factory, these EPS beads are carefully molded and fused to create sturdy yet flexible insulation boards. One of the standout features of our product is its customizable thickness; we understand that different projects have unique requirements, so our boards can be precision-cut to various thickness levels to suit specific insulation needs. This versatility ensures that whether you’re working on a residential, commercial, or industrial project, our ICF under-floor insulation can be tailored to provide optimal thermal performance and fit seamlessly into your construction plans.

What Is Thermo Under Floor Insulation & performance values?

ThermoBoard is an under-floor heating panel which can form part of the Thermohouse building system. It is a high-density, insulation board manufactured from expanded polystyrene (EPS).

Thermoboard can be used as part of your ground floor build up, to provide you with a warm, well insulated floor.

ThermoBoard Typical Values

Thermoboard is manufactured in a variety of thicknesses to achieve U-Values as low as 0.12w/m2k.

Thermal Conductivity 0.3W/m2K
U Value 0.12 for 225mm board
0.15 for 180mm board
0.27 for 100mm board
0.33 for 80mm board
0.40 for 60mm board
Panel Thickness 60 – 225mm
Type EPS

Why use Thermo Under Floor Insulation?

Under-floor insulation offers numerous benefits that significantly enhance the comfort, efficiency, and sustainability of buildings. Primarily, it acts as a barrier to heat loss, helping to maintain a consistent indoor temperature throughout the year. This improved thermal efficiency translates into lower energy consumption for heating and cooling, leading to substantial cost savings on utility bills. Additionally, under-floor insulation contributes to a healthier living environment by reducing the likelihood of dampness and mold growth, which can be detrimental to indoor air quality and overall health. It also provides soundproofing benefits, minimizing noise transmission through floors, and enhances the structural integrity of the building by protecting against ground moisture. Overall, under-floor insulation is a crucial component in creating energy-efficient, comfortable, and durable homes and buildings.

What are the benefits for under floor heating?

  • Saves you money
  • Installation time for underfloor heating system reduced by up to 60%
  • As the boards interlock and overlap it removes the need to tape their joints.
  • Removes the need for costly fixing materials such as polythene sheeting, track and rail fixing and/or clips
  • Eliminates cold bridging
  • They present a more stable working surface during installation

Challenges solved by the new Thermo Under Floor product

While duplex housing offers many advantages, it also presents certain challenges:

Energy Efficiency: Ensuring both units meet energy efficiency standards can be challenging, especially in older buildings.

Noise Control: Shared walls can lead to noise issues, requiring effective soundproofing.

Privacy Concerns: Balancing privacy for both units can be tricky, especially in layouts with shared spaces like gardens.

Construction Speed: Rapid construction is often essential in high-demand urban areas, and traditional construction methods may not meet timelines.

Environmental Impact: Traditional construction materials and methods can have a significant environmental impact.

Floor Insulation for large developments

Under-Floor Insulation used in Apartment Block, Milltown, Co.Kerry

Thermohouse Under-Floor Insulation is lightweight and easy to install which can be handled on-site without the need for specialised equipment.

Our Under-floor insulation is an innovative solution increasingly employed in large building developments to enhance energy efficiency and structural integrity. This system involves placing insulated panels that form the mold for concrete pouring, which remain in place as a permanent part of the building’s structure. By incorporating ICF under the floor, developers can significantly reduce heat loss, leading to lower energy consumption and enhanced thermal comfort within the building. The insulation provided by ICF not only minimizes the need for additional heating and cooling but also contributes to a more stable indoor environment, crucial for large developments with extensive floor areas. Furthermore, the robustness of the concrete forms provides additional strength to the building’s foundation, ensuring durability and long-term performance. This approach aligns with modern sustainability goals, offering both economic and environmental benefits in large-scale construction projects.

Exceeding building regulations

Thermohouse Floor insulation can easily exceed Part L 2021 requirements, achieving 0.15W/m2K with 200mm thickness board – all while keeping your project within budget.

Speak with our technical team for U-value calculations specific to your project today!

Water & moisture resistant

Our ICF under-floor insulation board is engineered to be highly water and moisture resistant, making it an ideal choice for maintaining a dry and healthy indoor environment. The use of Expanded Polystyrene (EPS) beads in its production ensures that the board has a closed-cell structure, which effectively repels water and prevents moisture absorption. This resistance to water ingress protects the insulation properties of the board, ensuring long-lasting thermal performance even in damp conditions. Additionally, the moisture resistance of our ICF insulation helps to prevent the growth of mold and mildew, contributing to a healthier living space and enhancing the durability of the flooring system. With our ICF under-floor insulation, you can trust that your home or building will remain protected from the detrimental effects of moisture.

Thermohouse Low energy Building System: The Solution

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