Reflective sheets are commonly used in low-profile underfloor heating systems where structural load minimisation is essential. Installers working on renovations or timber-framed buildings often integrate these sheets to maximise heat transfer efficiency without the need for screed. The IVAR.TR 01-RENOVA system board is typically used in conjunction with PEX or ALPEX pipes, and the reflective sheet enhances thermal conductivity by directing heat upwards into the room. This product is particularly suited for retrofitting in older buildings or where minimal construction height is required.

Its perforated design allows for easy cutting and adaptation to specific room layouts, making it ideal for irregular or complex spaces. The material is galvanised steel, which provides corrosion resistance and durability in underfloor environments. The sheet is supplied in a 40 m roll, with each sheet sized 1000 x 120 mm and a thickness of 0.4 mm, ensuring compatibility with standard pipe diameters and installation methods.

Technical parameters

Diameter	16 mm
Weight	0.54 kg
Code	TR02
Brand	IVAR

The 16 mm pipe diameter parameter ensures compatibility with standard PEX or ALPEX heating pipes used in underfloor heating systems. The sheet thickness of 0.4 mm and the 1000 x 120 mm dimensions are designed to fit within the constraints of low-profile systems, while the perforation every 250 mm allows for precise cutting without the need for additional tools. These parameters are essential for ensuring correct sizing and integration into the system board layout.

Installation and connection

During installation, the reflective sheet is placed directly beneath the heating pipes on the system board. The perforations allow for clean, straight cuts using a utility knife or scissors, ensuring a neat fit without damaging the board or pipe layout. The sheet should be aligned with the pipe direction to maximise heat reflection. A common mistake is misalignment or overlapping of sheets, which can reduce thermal efficiency. Installers should also ensure that the sheet is not folded or bent during placement, as this may affect its reflective properties. The sheet is not connected electrically and requires no additional fittings or connections.

Compatibility and accessories

This reflective sheet is specifically designed for use with the IVAR.TR 01-RENOVA system board. It is compatible with PEX or ALPEX pipes of 16 mm diameter. No additional accessories are required for installation, as the sheet is used in its supplied form. For larger projects, multiple rolls may be needed to cover the entire floor area. No alternative products are available for this application.

Technical background for designers

The reflective sheet operates by reflecting radiant heat upwards into the room, reducing heat loss into the subfloor. The galvanised steel material provides a durable, corrosion-resistant surface that maintains its reflective properties over time. The sheet is integrated into the system board to optimise thermal performance in low-profile installations. The efficiency of the system depends on the correct placement of the sheet and the alignment with the heating pipes. The perforation design also facilitates easier handling and reduces material waste during installation.

Service and operation

Once installed, the reflective sheet requires no maintenance and is not subject to wear during normal operation. There are no service intervals required, as the sheet is a passive component of the system. During routine inspections, installers should check for any physical damage or misalignment that may affect heat distribution. If the sheet is found to be damaged or improperly positioned, it should be replaced or repositioned to ensure optimal system performance.

Frequently asked questions

Can the reflective sheet be used with other system boards besides IVAR.TR 01-RENOVA?
No, this sheet is specifically designed for use with the IVAR.TR 01-RENOVA system board and is not compatible with other models.

Is the sheet suitable for use with copper pipes?
No, the sheet is intended for use with PEX or ALPEX pipes of 16 mm diameter and is not designed for copper pipe systems.

Can the sheet be cut to custom lengths?
Yes, the perforations every 250 mm allow for easy cutting to custom lengths without the need for additional tools.

Is the sheet reusable if removed during a renovation?
No, once installed and cut, the sheet is not reusable and should be replaced if removed.