Extruded Polystyrene Thermal Acoustic Underlay Insulation Foam Boards

Extruded Polystyrene Insulation Board Underlay for Thermal Performance

Our extruded polystyrene insulation board underlay provides a practical thermal and acoustic layer for a wide range of building and flooring projects. Manufactured from high-density XPS foam, each lightweight board covers 0.72 m² and can be cut to suit the installation area. The low thermal conductivity of 0.02 W/mK helps reduce heat transfer, making this XPS insulation board a practical choice for improving floor insulation. At Krucx, we supply boards suited to professional and DIY installation requirements.

The closed-cell construction provides moisture resistance alongside high compressive strength, helping the boards perform where durability and insulation are required. Use this thermal acoustic underlay beneath compatible flooring systems or as underfloor heating insulation to help direct heat towards the room. The insulation board underlay is also suitable for walls and roofs, providing a versatile solution for domestic renovation, property maintenance and commercial projects.

Features

• High-density extruded polystyrene XPS construction
• 1200 x 600mm board size covering 0.72 m²
• Thermal conductivity rated at 0.02 W/mK
• Moisture-resistant closed-cell foam structure
• High compressive strength for supported installations
• Lightweight construction for easier cutting and handling

Applications

• Under laminate and compatible flooring systems
• Floor insulation board for renovation projects
• Underfloor heating system insulation
• Thermal insulation for suitable walls and roofs
• Domestic and commercial property improvement projects

Improve Your Project with Efficient XPS Insulation

Choose a versatile insulation board underlay designed to combine thermal performance, moisture resistance and convenient installation. Its lightweight format makes boards easier to measure, cut and position, while the rigid XPS construction provides dependable support across suitable floor, wall and roof applications. Whether you are completing a domestic refurbishment, installing underfloor heating or sourcing materials for a larger commercial project, Krucx makes ordering straightforward. Check your required coverage, select the quantity for your project, and order online for fast UK dispatch.

Frequently Asked Questions

Q: How do I install XPS insulation boards?

Installation requirements vary by floor, wall, roof and covering system, so always follow the relevant flooring, adhesive and heating-system manufacturer's instructions.

Q: Can these boards be used with underfloor heating?

Yes. The boards are suitable for underfloor heating insulation applications and can help reduce downward heat transfer.

Q: What size is each insulation board?

Each board measures 1200 x 600mm and provides approximately 0.72 m² coverage. Calculate the total installation area and allow an appropriate additional quantity.