155mm Cellcore HX Plus Concrete Floor Slab Insulation combines ground heave protection with thermal performance when installed beneath reinforced concrete slabs. This advanced product features a cellular Expanded Polystyrene core bonded to a Filcor insulation layer and covered with a protective polypropylene sheet. Each board is precision-engineered, moulded, and tested to guarantee consistent performance and reliability.
Brand: Cordek®
Model: 155mm Cellcore HX Plus
Thickness: 155mm
Length: 2400mm
Width: 1200mm
Board coverage: 2.88m2
Available Grades: 7/10, 9/13, 13/18, 18/24, 24/32
Dimensions: 2,400mm x 1,200mm x 155mm
Beams Widths: 2400mm x 1200mm to 300mm (in 25mm increments)
Material: EPS Insulation ǀ Filcor ǀ Polypropylene
Shipping method: Rigid Vehicle ǀ Courier
Applications: Reinforced concrete floor slabs
BBA Certified: Yes (no.11/4862)
Maximum depth of concrete: 220mm
Features: Insulated Heave Protection Board
Safe load: 7 kN/m2
Shrinkage Category: Low
Manufacturer: Cordek Cellcore HX PLUS®
The flexibility of 155mm Cellcore HX Plus allows for custom shapes, sizes, and profiles to be manufactured with minimal lead times. Multiple material grades with varying compressive strengths are available to match your application's loading demands whilst delivering excellent value for money.
To request a quotation, please supply the following details:

Standard product ranges come in various thicknesses and grades to address typical combinations of soil heave risk, concrete depth, and U-value specifications.
155mm Cellcore HX Plus is designed for installation beneath reinforced concrete floor slabs, providing integrated ground heave protection and insulation.
To establish the complete product specification, first determine the appropriate 155mm Cellcore HX depth and grade to manage ground heave while supporting structural loads. Then calculate the required Filcor insulation thickness to achieve your target U-value.
Browse our Cordek range and filter by thickness or coverage using the left-hand menu. For product suitability advice or bulk quotations, contact us on +4402038839057, email sales@insulationbee, or use Live Chat for the best UK Insulation board prices.













