BEWI Jackodur KF300 SF 120mm XPS Insulation Board

120mm BEWI Jackodur KF300 SF is a rigid extruded polystyrene XPS insulation board developed for building projects that require dependable thermal performance, durability and resistance to moisture. Its closed-cell construction and high compressive strength make it a practical option for demanding applications where the insulation must withstand mechanical loads.

With a thickness of 120mm, this board provides additional thermal protection without adding excessive depth to the building structure. It can be considered for new-build projects, refurbishment work and construction details where installation space is limited.

The board has a declared thermal conductivity of 0.034 W/mK and a thermal resistance of approximately 0.85 m²K/W at this thickness. Always check the project design and manufacturer's technical guidance to confirm suitability for the intended application.

Product Specifications

1. Product: BEWI Jackodur KF300 SF XPS insulation board
2. Thickness: 120mm
3. Length: 1250mm
4. Width: 600mm
5. Boards per pack: 3
6. Coverage per board: 0.75m²
7. Coverage per pack: 2.25m²
8. Thermal conductivity: 0.034 W/mK for 30–60mm thickness
9. Compressive strength: 300 kPa at 10% deformation
10. Reaction to fire: Euroclass E
11. Surface finish: Skin
12. Available edge profiles across the range: Butt edge, shiplap and tongue and groove
13. Product standard: EN 13164

Technical details and edge-profile availability should be confirmed against the datasheet for the exact product supplied.

Suitable Construction Applications

Depending on the project design and installation requirements, BEWI Jackodur XPS products may be used for:

• Floor and slab insulation
• Wall insulation systems
• Substructure insulation
• Construction details where moisture resistance is required
• Areas subject to compressive loads
• Refurbishment projects requiring additional thermal protection
• 1. Explore our range of XPS and EPS insulation boards for different thermal insulation requirements and building applications.

Always select the correct XPS grade for the location, expected loads, moisture exposure and overall building specification.

Benefits of Jackodur KF300 SF XPS

1. Effective thermal insulation: Helps reduce heat transfer through the building fabric.
2. High compressive strength: The KF300 specification offers 300 kPa compressive strength at 10% deformation.
3. Moisture resistance: The closed-cell structure helps restrict water absorption.
4. Durable material: Resistant to rot and suitable for appropriate construction environments.
5. Easy to handle: Lightweight boards can be cut to size during installation using suitable tools.
6. Space-saving thickness: The slim profile adds insulation where available depth is restricted.

120mm XPS Board for Refurbishment and Building Projects

Where a construction detail cannot accommodate a thicker insulation layer, a 120mm XPS board can provide additional thermal resistance while keeping the build-up relatively slim. Its rigid structure makes it suitable for specified applications where both insulation performance and mechanical durability are important.

Before installation, check compatibility with adjoining materials, the proposed construction build-up and the manufacturer's installation instructions to ensure the board is suitable for your project.

If you are sourcing insulation for a façade project, explore our external wall insulation boards and check that the selected board is approved for the intended system.