Next day delivery available, call us!

Need to speak to someone? Contact us!
View as
Floor Insulation

Floor Insulation

(48 products)

Buy the best floor insulation, available in boards and slabs to suit a range of applications. Whether you are insulating concrete floors, suspended timber floors, or underfloor heating systems, selecting the right material is essential for reducing heat loss and enhancing energy efficiency.

We supply and deliver top PIR brands like Kingspan and Celotex, EPS (Expanded Polystyrene) for domestic and industrial floor applications, and XPS (Extruded Polystyrene) for ground floors and basements.

From your shed and garage floor to laminate and carpeted floors, find the perfect insulation solution that meets building regulations and ensures long-term energy savings.

Underground Floor Insulation (Below Ground Level)

The following floor insulation products are designed for use beneath foundations, basements, and slabs, effectively resisting moisture and providing thermal protection.

Foamglas® T3+ board has high compressive strength and is waterproof.

  • Fire rating: Euroclass A1
  • Density: 100 kg / m3
  • Thermal conductivity: 0.036 W/(mK)
  • Compressive strength: 500 kPa

Foamglas® Perinsul HL board is ideal for fire resistance and moisture protection.

  • Fire rating: Euroclass E
  • Density: 200 kg / m3
  • Thermal conductivity: 0.058 W/mK
  • Compressive strength: 2.75 MPa

Kingspan GreenGuard GG300R XPS board offers high density, excellent thermal efficiency, and moisture resistance.

  • Density: 200 kg / m3
  • Thermal conductivity: 0.034 W/mK 
  • Compressive strength: 300 kPa

Below-floor insulation (Above the Ground but Beneath the Finished Floor)

The following floor insulation products can be used above concrete slabs or between joists in suspended floors:

Kingspan Kooltherm K103 Floorboard has superior thermal efficiency and is great for under screed.

  • Thicknesses: 25mm to 150mm
  • Material type: Lower-lambda rigid thermoset phenolic insulation
  • Thermal conductivity: 0.019 W/mK
  • Fire rating: Euroclass C

Celotex PIR Insulation Board and Recticel General Purpose PIR Insulation Board are affordable and effective for underfloor applications

  • Thicknesses: 20mm to 200mm
  • Material type: Polyisocyanurate (PIR)
  • Thermal conductivity: 0.022 W/mK
  • Fire rating: Euroclass C

Back to top
Compare /4

Welcome to Shopify Store

I act like: