6mm Tekwarm Overlay for Routed OSB & Chipboard 1200mm x 600mm

This 6 mm Tekwarm overlay is designed specifically to be installed over Tekwarm routed OSB and routed chipboard panels once the heating pipe is already in place. It is not intended for solid screeds, loose-laid pipe, or non-routed panel systems.

Each board measures 1200 mm × 600 mm and is 6 mm thick. This slim profile is commonly used where overall floor build-up needs to be kept as low as possible.

It is used as a cover sheet over routed underfloor heating panels. After the pipework is installed, the overlay is fixed on top to close the channels, protect the pipework, and create a smooth, continuous surface ready for the final floor finish.

No. At 6 mm thick, this is not a structural layer. The routed OSB or chipboard panels beneath provide the load-bearing support. The overlay’s role is surface closure and pipe protection rather than strength.

It is typically used beneath laminate, engineered wood, vinyl, carpet, and tiled finishes, provided the floor covering manufacturer’s guidance for use with underfloor heating is followed.

Yes. The boards can be cut with standard woodworking tools to suit room layouts and edges. Fixings should always be positioned carefully to avoid contact with the heating pipe below.

The 6 mm overlay is generally chosen where minimal height build-up is critical, such as refurbishment projects or where finished floor levels are restricted. Thicker boards are usually used only where extra rigidity or levelling is required.