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ThermRite XPS Insulation Board – Professional Grade

ThermRite

£4.70 inc. VAT

Thickness 3mm 6mm 10mm 20mm 25mm

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ThermRite™ XPS Insulation Board – Professional Grade

Description

The ThermRite™ XPS Insulation Board is a high-performance extruded polystyrene foam (XPS) insulation board designed to provide superior thermal insulation beneath underfloor heating systems. It offers exceptional compressive strength, moisture resistance, and thermal efficiency, making it ideal for insulation under screeds, tiles, and other floor finishes.

Available in multiple thicknesses, this board supports both refurbishment and new build projects, ensuring minimal heat loss and improved heating system efficiency.

Minimum Order: 14 Boards

3.0mm Boards are cut in half and supplied as 2 x 600x600mm boards (equalling 1200x600mm total). All other board sizes are despatched as 1 x 1200x600mm board.

For tile floor finishes these insulation boards are bonded down to the subfloor using flexible tile adhesive.

Key Features

High compressive strength of 300 kPa (30 tonnes/m²) for heavy loads
Thermal conductivity: 0.035 W/m·K
Size per board: 1200mm x 600mm, coverage: 0.72 m² per board
Water-resistant, durable, and dimensionally stable
Fire classification: Euroclass E
Suitable for use below tiled floors, screeds, and chipboard

Benefits

Reduces heat loss to improve underfloor heating system efficiency
Highly durable and moisture resistant for long-term performance
Easy to handle and cut on site for precise fitting
Provides strong support for floor finishes and structural integrity

Technical Specifications

Dimensions	1200mm x 600mm
Available Thicknesses	3mm, 6mm, 10mm, 20mm, 25mm
Coverage per Board	0.72 m²
Compressive Strength	300 kPa (30 tonnes/m²)
Thermal Conductivity (λ)	0.035 W/m·K
Fire Rating	Euroclass E
Weight	Varies with thickness (approx. 2-14 kg)

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