Collection: Overlay Boards

ThermRite™ PRO 16mm UFH Panel

The ThermRite PRO 16 mm panel is a low-profile, dual-purpose overlay board with rigid EPS insulation and a factory-bonded 200 micron foil covering. It’s designed for water-based underfloor heating systems and accepts tile, wood or vinyl floors directly — making it ideal for retrofits or renovations where floor-build height must be minimised. Its high compressive strength ensures long-lasting stability without sacrificing thermal efficiency.

ThermRite™ PRO 20mm UFH Panel

For installations requiring a slightly more robust base, the ThermRite PRO 20 mm panel delivers enhanced load-bearing capacity while retaining excellent thermal performance. Its foil-faced insulation supports ceramic tile and wood floor finishes directly — offering an efficient, dependable solution for underfloor heating installations in both new build and renovation projects.

ProTile20 – 20mm Cementitious Insulation Panel

The ProTile20 is a cement-based overlay panel that provides a durable, stable substrate for underfloor heating systems. Its 20 mm profile balances strength and heat conductivity, making it a great choice when you need a robust base for tiles or heavier floor finishes, while maintaining efficient and even heating distribution.

18mm ThermRite HIGH OUTPUT Low Profile Floor Panel

This 18 mm low-profile panel is designed for quick, efficient underfloor heating projects where minimal floor height increase is essential. Its compact design, combined with underfloor heating compatibility, ensures even, fast heat distribution — an excellent option for refurbishment projects or areas with ceiling-height restrictions.

ThermRite 25mm Solid Floor UFH Panel

The 25 mm Solid Floor UFH Panel is tailored for use with larger-diameter pipes (e.g. 16 mm) and heavier floor loads. Its robust construction ensures long-term durability and stability, while delivering reliable thermal performance — ideally suited for installations where greater structural strength and underfloor heating efficiency are needed.

HeatBoard ONE Grooved Chipboard Panel

The HeatBoard ONE panel offers a cost-effective and straightforward solution for water-based underfloor heating installations. Its grooved chipboard design simplifies pipe layout and installation, enabling easy placement of pipes while providing a stable base for floor finishes. This makes it a solid pick for residential refits or projects where speed and ease of installation are priorities.

For larger spaces or commercial-grade installations, the HeatBoard ONE MAX panel delivers extended coverage with fewer joins. Its grooved chipboard construction streamlines underfloor heating installation over large areas, helping to save time and reduce joint sealing work — perfect for open-plan spaces or large floor renovations.

ThermRite Floating Floor Foil‑Faced EPS Board

This foil-faced EPS board provides a lightweight but effective overlay solution, combining insulation with underfloor heating compatibility. The 18mm profile board helps keep floor build-up low, while foil facing improves thermal reflection and efficiency — a smart choice when retrofitting underfloor heating under narrow floor height constraints.

The 25mm foil-faced floating panel offers increased insulation depth, making it well-suited to projects needing stronger thermal performance or in areas with heat loss concerns. Its insulation-first design supports efficient underfloor heating while providing a stable substrate for floor finishes, ideal for colder climates or less-insulated buildings.

Profix Panel – 15mm Low Profile UFH Panel

As one of the slimmest overlay boards, the Profix 15mm panel is perfect when minimum floor height is critical — for example in refurbishments with low door thresholds or underfloor constraints. Despite its low profile, it remains compatible with standard underfloor heating pipes and supports efficient heat transfer while providing a stable base for tiles or floor coverings.

Profix™ PLUS 20mm Overlay UFH Panel

The Profix PLUS 20mm panel balances low build-up with robust structural performance, making it ideal for underfloor heating installations that demand both floor stability and thermal efficiency. Its design suits tile or wood floor finishes and delivers a reliable overlay solution for modern residential or commercial flooring projects.

Routed Dry Screed Overlay Board with Turns

Designed with pre-cut grooves and integrated “turns,” this routed board simplifies pipe layout for underfloor heating — eliminating the need for separate turning boards. Its low-profile 18mm cement boards are a design combining excellent thermal conductivity and ease of installation make it a strong contender for both new builds and retrofits where fast, clean installation is desired.

Why these Boards Matter For Underfloor Heating Systems & Flooring Projects

• Efficient heat transfer & low thermal resistance — Many of the boards leverage materials and construction (foil-faced EPS, cementitious overlays, grooved chipboard) in ways that promote fast, even heat distribution across your floor.
• Low build-up height — Several panels (15–18 mm, or thin foil-faced EPS panels) are designed to minimise added floor height — perfect for renovations, door-clearance issues, or underfloor constraints.
• Versatile floor finish compatibility — From tiles to wood, vinyl or laminate, most boards accept common floor coverings directly or with minimal additional layers.
• Simplified installation — Tongue & groove edges, interlocking joints, grooved channels for pipework or pre-routed layouts reduce labour time and installation complexity.
• Durability and long-term stability — Cementitious boards, EPS-based overlays, and solid chipboard panels resist moisture-related swelling or contraction (unlike standard chipboard), deliver high impact resistance, and maintain structural integrity over time.