Jablite is the UK's largest producer of EPS products for insulation and civil engineering applications

Thermal Floor System+SB


Jablite Thermal Floor System with Structural Board is our own-brand, Jablite-designed, structural insulation system for suspended floors.

It is designed to replace block and beam suspended floors with a fast, safe build and an excellent thermal performance that assists with achieving Part L 2013 compliance.

Key Benefits

BBA Certified 14/5094

Reduced excavation

Less spoil removal

Improved health and safety

Achieves specified U-values

Outstanding Psi values

Zero waste on site



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Downloads & Specifications
Thermal Floor System+SB

BBA Certificates and other supporting documents can be found in Technical Resources

Technical Resources
Technical information
Product specification

Jablite insulation is supplied in EPS (expanded polystyrene) or in HP (high performance) EPS to provide the required thermal performance.

Jablite EPS insulation is 100% recyclable and Jablite provides a site collection of clean material cut offs and these are recycled back into insulation boards.

Jablite manufactures to ISO 9001 and ISO14001 certified standards.
CE Marking
Jablite All-in-One Thermal Floor System  is CE marked. The Declaration of Performance (DOP) is available on request.

You can download the CE Marking approval certificate here

The All-in-One Thermal Floor System is completed by the installation of 75mm (minimum) structural concrete topping:

  • Concrete with macro-polymer fibres: C25/30 with maximum 10 mm aggregate and 4 Kg/m3 Durus S400, 45 mm long and 0.9 mm in diameter.
  • Concrete with micro-polymer fibres: C25/30 with maximum 10 mm aggregate and 0.91 Kg/m3 Fibrin X-T, 13 to 19 mm long and 22 mm in diameter.
  • Concrete reinforced with steel mesh: C25/30 concrete with maximum 10 mm aggregate and A142 steel mesh, ribbed bar to BS 4483:2005 and BS 4449:2005.

The Jablite thermal floor system can be designed to meet any U-value requirements

U-value table
U-value (W/m2K):
Based on 155mm Supreme Beams
 A = 100% Full Panel Installation B = 75% Full Panel / 25% Half Panel Installation
Grey 150mm Infill Panel Grey 150mm Infill Panel Grey 150mm Infill Panel Grey 150mm Infill Panel Grey 150mm Infill Panel
Grey 75mm Top Sheet Grey 100mm Top Sheet Grey 125mm Top Sheet Grey 150mm Top Sheet Grey 200mm Top Sheet
0.80 0.16 0.17 0.14 0.14 0.13 0.13 0.11 0.12 0.10 0.10
0.70 0.16 0.16 0.14 0.14 0.12 0.13 0.11 0.12 0.10 0.10
0.60 0.16 0.16 0.14 0.14 0.12 0.13 0.11 0.11 0.09 0.10
0.50 0.15 0.16 0.14 0.14 0.12 0.12 0.11 0.11 0.09 0.09
0.40 0.15 0.15 0.13 0.13 0.12 0.12 0.11 0.11 0.09 0.09
0.30 0.14 0.15 0.13 0.13 0.11 0.12 0.10 0.11 0.09 0.09
+How are Jablite products rated in the BRE Green Guide to Specification?
Jablite manufactures EPS (expanded polystyrene) products which are A+ rated in the BRE Green Guide, except for Jablite 300 grade insulation for inverted roofs which has an A rating
+Does Jablite manufacture to ISO 14001?
Yes, Jablite is certified to the BS EN ISO 14001 Environmental Management System standard.
+Is Jablite accredited to ISO 9001?
Yes, all Jablite sites are accredited to BS EN ISO 9001 Quality Management System.