ThermoSphere Concrete Insulation Board
ThermoSphere Concrete Insulation Boards are designed to maximise the efficiency of electric underfloor heating systems on concrete subfloors. Made from high-density extruded polystyrene, these uncoated boards significantly reduce downward heat loss, resulting in up to 50% greater system efficiency. With 100% moisture and rot proof properties, they are ideal for new builds, refurbishments, and wet environments.
Key Features
- High-Density Insulation: Reduces heat loss into concrete substrates, improving heating performance and cutting energy costs.
- Moisture & Rot Proof: Fully resistant to water ingress, perfect for kitchens, bathrooms, and wet rooms.
- Minimal Build-Up Height: Available in slim 6mm and 10.5mm thicknesses, suited for both new installations and refurbishments.
- Easy to Handle: Lightweight boards are simple to cut and install, saving time on-site.
- Durable & Long-Lasting: Robust insulation maintains its efficiency over the lifetime of the heating system.
- Certified Performance: Compressive strength of 300 kPa and tested to relevant UK standards.
Technical Specifications
| Brand | ThermoSphere |
|---|---|
| Product Type | Concrete Insulation Board (Uncoated) |
| Dimensions | 1200mm x 600mm |
| Thickness | Available in 6mm and 10.5mm |
| Compressive Strength | 300 kPa |
| Thermal Conductivity | 0.033 W/mK |
| Water Absorption | 0.6% |
| Density (foam) | 36 Kg/m³ |
| Temperature Range | -50°C to +75°C |
| Fire Performance | Euro Class E EN13501 |
| Efficiency Improvement | Up to 50% (compared to no insulation) |
| EAN | 5056257301280 |
| MPN | THR-CIB-105-10 |
Applications
- Concrete subfloors in residential and commercial properties.
- Bathrooms, wet rooms, kitchens, and other areas requiring moisture protection.
- Retrofit and new build projects seeking improved underfloor heating efficiency.
Why Choose ThermoSphere Concrete Insulation Boards?
- Up to 50% increase in heating system efficiency.
- Moisture and rot proof for long-term performance.
- Slimline options for systems where build-up height is critical.
- Trusted UK quality and suitability for all electric underfloor heating applications.
Product Information
Product Information
Shipping & Returns
Shipping & Returns


ThermoSphere Concrete Insulation Board
ThermoSphere Concrete Insulation Board
ThermoSphere Concrete Insulation Boards are designed to maximise the efficiency of electric underfloor heating systems on concrete subfloors. Made from high-density extruded polystyrene, these uncoated boards significantly reduce downward heat loss, resulting in up to 50% greater system efficiency. With 100% moisture and rot proof properties, they are ideal for new builds, refurbishments, and wet environments.
Key Features
- High-Density Insulation: Reduces heat loss into concrete substrates, improving heating performance and cutting energy costs.
- Moisture & Rot Proof: Fully resistant to water ingress, perfect for kitchens, bathrooms, and wet rooms.
- Minimal Build-Up Height: Available in slim 6mm and 10.5mm thicknesses, suited for both new installations and refurbishments.
- Easy to Handle: Lightweight boards are simple to cut and install, saving time on-site.
- Durable & Long-Lasting: Robust insulation maintains its efficiency over the lifetime of the heating system.
- Certified Performance: Compressive strength of 300 kPa and tested to relevant UK standards.
Technical Specifications
| Brand | ThermoSphere |
|---|---|
| Product Type | Concrete Insulation Board (Uncoated) |
| Dimensions | 1200mm x 600mm |
| Thickness | Available in 6mm and 10.5mm |
| Compressive Strength | 300 kPa |
| Thermal Conductivity | 0.033 W/mK |
| Water Absorption | 0.6% |
| Density (foam) | 36 Kg/m³ |
| Temperature Range | -50°C to +75°C |
| Fire Performance | Euro Class E EN13501 |
| Efficiency Improvement | Up to 50% (compared to no insulation) |
| EAN | 5056257301280 |
| MPN | THR-CIB-105-10 |
Applications
- Concrete subfloors in residential and commercial properties.
- Bathrooms, wet rooms, kitchens, and other areas requiring moisture protection.
- Retrofit and new build projects seeking improved underfloor heating efficiency.
Why Choose ThermoSphere Concrete Insulation Boards?
- Up to 50% increase in heating system efficiency.
- Moisture and rot proof for long-term performance.
- Slimline options for systems where build-up height is critical.
- Trusted UK quality and suitability for all electric underfloor heating applications.
Original: $29.64
-65%$29.64
$10.37Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
ThermoSphere Concrete Insulation Boards are designed to maximise the efficiency of electric underfloor heating systems on concrete subfloors. Made from high-density extruded polystyrene, these uncoated boards significantly reduce downward heat loss, resulting in up to 50% greater system efficiency. With 100% moisture and rot proof properties, they are ideal for new builds, refurbishments, and wet environments.
Key Features
- High-Density Insulation: Reduces heat loss into concrete substrates, improving heating performance and cutting energy costs.
- Moisture & Rot Proof: Fully resistant to water ingress, perfect for kitchens, bathrooms, and wet rooms.
- Minimal Build-Up Height: Available in slim 6mm and 10.5mm thicknesses, suited for both new installations and refurbishments.
- Easy to Handle: Lightweight boards are simple to cut and install, saving time on-site.
- Durable & Long-Lasting: Robust insulation maintains its efficiency over the lifetime of the heating system.
- Certified Performance: Compressive strength of 300 kPa and tested to relevant UK standards.
Technical Specifications
| Brand | ThermoSphere |
|---|---|
| Product Type | Concrete Insulation Board (Uncoated) |
| Dimensions | 1200mm x 600mm |
| Thickness | Available in 6mm and 10.5mm |
| Compressive Strength | 300 kPa |
| Thermal Conductivity | 0.033 W/mK |
| Water Absorption | 0.6% |
| Density (foam) | 36 Kg/m³ |
| Temperature Range | -50°C to +75°C |
| Fire Performance | Euro Class E EN13501 |
| Efficiency Improvement | Up to 50% (compared to no insulation) |
| EAN | 5056257301280 |
| MPN | THR-CIB-105-10 |
Applications
- Concrete subfloors in residential and commercial properties.
- Bathrooms, wet rooms, kitchens, and other areas requiring moisture protection.
- Retrofit and new build projects seeking improved underfloor heating efficiency.
Why Choose ThermoSphere Concrete Insulation Boards?
- Up to 50% increase in heating system efficiency.
- Moisture and rot proof for long-term performance.
- Slimline options for systems where build-up height is critical.
- Trusted UK quality and suitability for all electric underfloor heating applications.
















