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Thermal Conductivity and Insulation Panels

EPS (Expanded Polystyrene Insulation)

Expanded Polystyrene insulation panels are our most popular insulation material, offering great thermal conductivity and performance at a great price. EPS is extremely lightweight, which is what makes it an ideal material for attaching to the external walls to upgrade the thermal performance of the building.

EPS insulation has a thermal conductivity of 0.032W/(m2K), meaning that a 90mm insulation panel will bring a solid wall property in line with building regulations.

XPS (Extruded Polystyrene Insulation)

Much like EPS, Extruded Polystyrene is also a foam insulation panel. This particular foam has a closed-cell structure, which means that it is more waterproof and has greater compressive strength. This type of insulation is typically used for insulating below the DPC, as this area poses a greater risk of water penetration.

XPS insulation has a thermal conductivity of 0.038W/(m2K), which means that 110mm will be required to reach building regulation U-values.

Kingspan K5 Insulation

Kingspan K5 insulation is a high performance, phenolic insulation panel. This product is a premium performance, rigid thermoset insulation which is ideal for refurbishment of solid wall properties. This product has a very high compressive strength and is great for applications where there is a limit to the amount of external space that can be taken up.

The K5 insulation has a thermal conductivity of 0.020W/(m2K), which means that 60mm will be required to reach building regs.

Mineral Wool Insulation

Arguably our most high-performance insulation panels, the Rockwool Duo-Density Slab offers excellent thermal performance, fire performance and acoustic insulating capabilities. This is a premium insulation material that is often used for high rise buildings and for applications where a high level of fire safety is required.

Mineral Wool insulation has a thermal conductivity of 0.038W/(m2K), which means that 110mm would be required for a solid wall to meet building regulations.

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