System insulation board - with protective foil - 1000x500mm (0,50m2); black - 7,5m2/15pcs IVAR.TH 15 P

Product detailed description

System insulation boards are essential components in hydronic floor heating systems, ensuring even heat distribution and efficient thermal performance. These boards are typically installed beneath the heating pipes in residential, commercial, and industrial buildings, where underfloor heating is integrated into concrete slabs, screeds, or dry systems. The board supports the correct positioning of the pipe loops and minimises thermal bridging, ensuring that the heat is directed upwards into the room rather than being lost into the subfloor. The protective foil on the board also helps prevent damage during installation and provides a smooth surface for the application of screed or other finishing layers.

For installers and system designers, the correct selection and placement of insulation boards are crucial to achieving the desired thermal output and system efficiency. The board must be cut and laid according to the heating plan, with attention to spacing and alignment to ensure uniform heat distribution. The board is typically used in conjunction with PEX or ALPEX pipes, which are embedded within the insulation matrix. The board is suitable for use with pipe diameters of 16–18 mm, making it compatible with standard underfloor heating pipe systems.

Technical parameters

Code	TH15P
Brand	IVAR

The technical parameters of the IVAR TH15P system insulation board include a nominal size of 1000x500 mm, providing 0.50 m² of coverage per board. The board is designed to accommodate pipe spacing of 50, 100, 150, 200, 250, or 300 mm, allowing for flexible layout options depending on the room size and heating requirements. These parameters are essential for determining the number of boards required for a given installation area and for ensuring that the spacing between heating pipes is optimised for thermal efficiency.

Installation and connection

The installation process begins with the preparation of the subfloor, ensuring it is clean, level, and free from debris. The insulation boards are then laid out according to the heating plan, with the protective foil facing upwards. The heating pipes are embedded into the grooves or channels on the board, following the specified spacing. Once the pipes are in place, the system is pressure tested to check for leaks and ensure proper flow. Common installation mistakes include incorrect spacing between pipes, which can lead to uneven heat distribution, and failure to secure the board properly, which may cause movement during screed application. Installers should also ensure that the board is cut accurately to fit around obstacles such as columns or walls.

Compatibility and accessories

The IVAR TH15P system insulation board is compatible with standard underfloor heating systems that use PEX or ALPEX pipes with an external diameter of 16–18 mm. It is typically used in conjunction with heating pipes, manifolds, and control systems. Additional accessories such as pipe clips, expansion joints, and insulation for pipe connections may also be required to complete the installation. Installers should ensure that all components are sourced from compatible manufacturers to maintain system integrity and performance.

Technical background for designers

The system insulation board functions as a thermal conductor and support structure for the heating pipes. It is typically made from expanded polystyrene (EPS) or polyethylene, which provides good thermal resistance and mechanical stability. The protective foil on the board prevents damage during installation and ensures a smooth surface for screed application. The board's design allows for even heat distribution by minimising thermal losses and directing heat upwards into the room. The efficiency of the system is influenced by the spacing between the pipes, the thickness of the board, and the type of finishing layer applied. Proper integration into the overall heating system is essential to achieve the desired thermal output and energy efficiency.

Service and operation

During operation, the system insulation board requires minimal maintenance. However, regular checks should be performed to ensure that the board remains intact and that the heating pipes are properly embedded. Any damage to the board should be repaired or replaced to prevent heat loss and ensure even heating. The system should also be inspected for signs of wear or degradation, particularly in areas where the board is exposed to mechanical stress. While no specific service intervals are provided, periodic visual inspections are recommended to maintain system performance.

Frequently asked questions

Can the IVAR TH15P board be used with PEX pipes?
Yes, the board is specifically designed for use with PEX or ALPEX pipes with an external diameter of 16–18 mm.

What is the maximum spacing between heating pipes on this board?
The board supports pipe spacing of up to 300 mm, allowing for flexible layout options depending on the heating requirements.

Is the protective foil on the board removable?
No, the protective foil is an integral part of the board and should remain in place during installation to prevent damage and ensure a smooth surface for screed application.

Can the board be cut to fit around obstacles?
Yes, the board can be cut to fit around obstacles such as columns or walls. Care should be taken to ensure that the cut edges are clean and that the board remains stable during installation.

Documents for download

• CSTL_IVAR.TH 30, 15 P (PDF)