Distribution sheet UHPS

Product detailed description

Dry underfloor heating systems are commonly used in residential and commercial buildings to provide even and efficient floor-level heating. Installers working with these systems often require components that ensure precise pipe placement and effective heat transfer. The IVAR UHPS1/64KS distribution sheet is specifically engineered for use with 16 mm diameter pipes in dry systems, where the pipes are embedded in a thin layer of mortar or grout rather than a full concrete screed. This method reduces installation time and allows for faster drying periods compared to traditional wet systems.

The UHPS1/64KS is installed within expanded polystyrene insulation boards and ensures that the heating pipes are correctly spaced and supported. Its design prevents lateral movement of the pipes during grouting and guarantees full contact between the pipe and the surrounding material. This ensures consistent heat distribution across the entire floor surface and minimises thermal bridging. The system is particularly suitable for renovations or projects where rapid installation is required.

Technical parameters

Installation and connection

Installation begins with placing the UHPS1/64KS sheets into the polystyrene base. The sheets should be laid out in a grid pattern, aligning the interlocking edges to prevent misalignment. Once positioned, the 16 mm pipes are inserted into the designated grooves. It is important to verify that the pipes are seated correctly within the grooves and that there is no twisting or kinking. A common mistake is failing to ensure full coverage of the pipe with grout, which can lead to reduced heat output. Installers should also check that the interlocking edges are fully engaged to prevent any lifting or shifting during grouting.

Compatibility and accessories

The UHPS1/64KS is compatible with standard dry underfloor heating systems using 16 mm pipes. It is typically used in conjunction with polystyrene insulation boards such as the UHPD (STIROTERMAL DRY) model. For system integrity, it is recommended to use a separation film, such as the 601001H, to prevent grout from seeping into the insulation layer. These accessories ensure optimal performance and longevity of the underfloor heating system.

Technical background for designers

The UHPS1/64KS operates by providing a stable and thermally conductive platform for the heating pipes. The aluminium construction ensures high thermal conductivity, allowing for efficient heat transfer from the pipe to the floor surface. The 0.5 mm height of the sheet ensures that the pipe remains at the correct depth within the grout layer, maximising heat emission. The 5 mm protrusions beneath the lugs help to fully encapsulate the pipe in grout, enhancing thermal contact and reducing the risk of cold spots. Proper integration into the system requires careful planning to ensure even spacing and coverage, especially in large or irregularly shaped rooms.

Service and operation

During operation, the UHPS1/64KS requires minimal maintenance. However, it is important to periodically inspect the system for signs of damage or misalignment, particularly after major renovations or structural changes. Any visible cracks or separations in the sheets should be addressed promptly to maintain system efficiency. There are no specified service intervals for this component, as it is considered a passive element within the underfloor heating system.

Frequently asked questions

Can the UHPS1/64KS be used with 16 mm PE-Xa pipes?
Yes, the UHPS1/64KS is specifically designed for 16 mm pipes, including PE-Xa, provided they are used in a dry underfloor heating system.

Is it possible to cut the UHPS1/64KS sheets to fit irregular spaces?
Cutting the sheets is acceptable, but care must be taken to maintain the interlocking edge on at least one side to ensure secure connection with adjacent sheets.

What is the purpose of the protrusions on the inside of the sheet?
The 5 mm protrusions ensure that the pipe is fully surrounded by grout, including from the bottom, improving heat transfer and preventing thermal bridging.

How does the interlocking design benefit the system?
The interlocking design prevents gaps between sheets, ensuring continuous coverage and preventing grout from seeping into the insulation layer.