X215
XPS Grooved Underfloor Heating Insulation Board
Thermal Insulation · Secure Pipe Fitting · Easy Installation
Product Overview
The STRUXSYSTEMS XPS Grooved Underfloor Heating Insulation Board is designed for water-based underfloor heating systems. Made from extruded polystyrene (XPS) foam, the board combines thermal insulation with pre-formed grooves for heating pipe installation.
The grooves are designed to accommodate 16 mm heating pipes at 150 mm center-to-center spacing, helping maintain consistent pipe positioning and support an organized installation layout.
With a compressive strength of 300 kPa, the board provides a lightweight insulation layer that helps reduce downward heat loss and improve the thermal efficiency of underfloor heating systems.
Key Features & Benefits
- Thermal Insulation: Helps reduce heat loss into the underlying floor structure and directs more heat upward.
- Pre-Formed Pipe Grooves: Designed for 16 mm water heating pipes with 150 mm spacing.
- Compressive Strength: 300 kPa for reliable performance under suitable floor system conditions.
- Lightweight & Easy to Handle: Convenient to cut, position and install on site.
- Consistent Pipe Layout: Grooves help maintain the intended pipe spacing during installation.
- Versatile Applications: Suitable for underfloor heating assemblies beneath tile and other compatible floor finishes, subject to the specified system build-up.
Technical Specifications
| Item | Specification |
| Product Name | XPS Grooved Underfloor Heating Insulation Board |
| Material | Extruded Polystyrene (XPS) |
| Board Size | 1200 × 600 × 25 mm |
| Heating Pipe Diameter | 16 mm |
| Pipe Spacing | 150 mm |
| Compressive Strength | 300 kPa |
| Heating System | Water-Based Underfloor Heating |
| Installation | Grooved side facing up |
Applications
- Underfloor heating systems in residential buildings
- New-build and renovation projects
- Heating installations beneath tiled floors
- Suitable floor assemblies with compatible laminate or engineered wood finishes, subject to flooring system requirements
Installation Notes
- Ensure the substrate is clean, stable and level before installation.
- Position the boards with the grooved surface facing upward.
- Fit the 16 mm heating pipes into the pre-formed grooves according to the heating layout.
- Complete the required load-distribution, screed or overlay layers in accordance with the heating system design and the final floor finish manufacturer’s instructions.
Important: The 300 kPa compressive strength of the XPS board alone does not establish the load capacity of the complete floor assembly. Direct tile installation or installation without a screed should only be used where the complete system has been specifically designed and approved for that application.
