The Warmup Insulation Board is a high-performance insulation and tile backer board designed to improve the efficiency of electric underfloor heating systems while providing a strong, stable surface for floor and wall finishes. Manufactured from water-resistant extruded polystyrene with glassfibre-reinforced cement coatings on both faces, the boards provide a thermal barrier that helps reduce heat loss into the subfloor and improve heating response. Available in 6mm, 10mm, 20mm, 30mm, 40mm and 50mm thicknesses, Warmup Insulation Boards provide a solution for a wide range of new-build and renovation projects.
Warmup Insulation Boards are available in the following thicknesses, allowing the insulation level to be selected according to the available floor build-up and project requirements:
| Thickness | Board Size | Coverage | R Value |
|---|---|---|---|
| 6mm | 1250 x 600mm | 0.75m² | 0.11m²K/W |
| 10mm | 1250 x 600mm | 0.75m² | 0.22m²K/W |
| 20mm | 1250 x 600mm | 0.75m² | 0.50m²K/W |
| 30mm | 1250 x 600mm | 0.75m² | 0.78m²K/W |
| 40mm | 1250 x 600mm | 0.75m² | 1.06m²K/W |
| 50mm | 1250 x 600mm | 0.75m² | 1.33m²K/W |
Warmup's current product page confirms the six available thicknesses and 1250 x 600mm board size. The manufacturer's technical specification provides the corresponding thermal resistance values.
Installing insulation beneath an underfloor heating system helps prevent heat from being absorbed by the subfloor. The Warmup Insulation Board acts as a thermal barrier, directing more of the heat produced by the heating system towards the floor surface.
Warmup states that its insulation boards can significantly reduce heat-up times and running costs by limiting downward heat loss. The thickness can be selected according to the required level of insulation and the available floor build-up height.
The boards feature a core of water-resistant extruded polystyrene, with each face finished with a glassfibre mesh embedded into a polymer-modified cement coating. This construction combines thermal insulation with a rigid surface suitable for use as a tile backer board.
The boards are designed to withstand substantial loading, with Warmup specifying a load-bearing capacity of up to 30 tonnes per square metre for the board system.
Warmup Insulation Boards can be installed over suitable concrete and timber subfloors. The boards should be cut to suit the installation using an appropriate knife or saw and laid with staggered joints.
When installing over a concrete floor, Warmup recommends fixing the boards using a suitable flexible tile adhesive. When installing over timber, the boards are secured using suitable screws and washers. Board joints should be reinforced using Warmup Fibreglass Tape.
For waterproof applications, Warmup specifies that joints and relevant fixing points should be sealed using a suitable silicone sealant. Always follow the manufacturer's installation instructions for the specific application.
Warmup Insulation Boards are suitable for:
Warmup states that the boards are suitable for both floors and walls and can be used across a range of subfloor and floor finish applications.
The six available thicknesses allow the board to be selected according to the required insulation performance and available floor build-up.
The 6mm and 10mm boards are useful where installation height is limited, while the 20mm, 30mm, 40mm and 50mm boards provide progressively greater thermal resistance where additional insulation is required. The thicker boards do, however, increase the overall floor build-up, so the available finished floor height should be considered before installation.
Warmup Insulation Boards are an insulation and backer board product, not a heating element. They should be installed as part of a suitable floor or wall construction and in accordance with Warmup's installation requirements.
The board joints should be correctly treated and reinforced, particularly where the boards form part of an underfloor heating or waterproof installation. Always check the requirements of the specific heating system and floor covering before installation.
Warmup Insulation Boards combine thermal insulation, structural stability and a tile-ready cement-coated surface in a single board. With six thickness options from 6mm to 50mm, they provide flexibility when designing underfloor heating installations where both heating efficiency and floor build-up need to be considered.
Warmup Insulation Board
6mm
