135mm Cordek Cellvent HX Grade 13/18 EPS Board

135mm Cordek Cellvent HX EPS Insulation Board combines the benefits of Ventform technology with the Cellcore HX range. This product protects against ground movement whilst functioning as a highly effective gas venting medium. Purpose-designed for installation beneath properly reinforced ground floor slabs, the 135mm thickness is selected based on predicted ground heave levels. For detailed specifications and design guidance, please review our Ground Heave Solutions brochure available in the downloads section.

Product specification

Brand: Cordek®

Thickness: 135mm

Length: 2400mm

Width: 1200mm

Coverage: 2.88m2

Dimensions: 2,400mm x 1,200mm x 135mm

Grade: 13/18

Model: 135mm Cellvent HX (Grade 13/18)

Colour: White and Green

Consistancy: Rigid cellular void former

Material: (EPS) Expanded Polystyrene Board

Applications: Beneath reinforced concrete floor slabs

BBA Certified: Yes, no. 11/4862

Features: Ground heave protection gas venting system

Manufacturer: Cordek Cellvent HX®

Key Features

1. Combines ground heave protection and gas venting capabilities in one product
2. Available in multiple thicknesses and grades to suit varying project requirements
3. Lightweight, robust panels measuring 2.40m x 1.20m for straightforward installation
4. All variants include drainage slots to reduce water pressure buildup
5. Resistant to UV exposure and moisture for extended durability
6. Works seamlessly with Cordek perimeter vents to safely channel ground gases from beneath buildings to the atmosphere.

Applications

Cellvent HX offers flexibility with a selection of grades and thicknesses tailored to specific ground conditions on your project. It integrates easily with Cordek gas membranes, vent outlets, and venting accessories to create a complete gas protection solution.

Depths and grades

The tables below help you choose the right Cellvent HX depth and grade based on soil type and planned reinforced concrete slab thickness:

Available depths and grades include:

Extra

The 135mm Cordek Cellvent HX Grade 13/18 merges Cellcore HX technology with Ventform capabilities, delivering effective ground heave mitigation and gas venting performance.

Supplied in various grades and thicknesses, Cellvent HX integrates with gas membranes, vent outlets, and venting accessories to establish a full gas protection system.

Engineered specifically for use beneath properly reinforced ground floor slabs in areas where subsidence risk is minimal, this Cordek EPS Void Former delivers the performance you need.

Providing ventilation capacity equivalent to the Ventform 80 range with a 40mm void depth, Cellvent HX is EPS insulation board ideal for projects requiring comprehensive gas protection systems. For higher venting capacity needs, please get in touch.

The Cellvent HX panel thickness depends on the expected level of ground heave movement.

Info

Browse our full Cordek range and refine by thickness or coverage using the filters on the left. To discuss product suitability for your project or request a quantity discount quote, please contact us on +4402038839057, email sales@insulationbee or use Live Chat - Lowest UK EPS Insulation Board Prices.