135mm Cordek Cellvent HX EPS Board Grade 18/24

135mm Cordek Cellvent HX EPS Insulation Board combines the benefits of Ventform technology with the Cellcore HX range. This product tackles ground movement issues whilst functioning as an efficient gas venting solution. Purpose-designed for installation beneath properly reinforced ground floor slabs, the 135mm thickness is selected based on anticipated ground heave levels. For detailed guidance and design specifications, 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: 18/24

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. Supplied in multiple thicknesses and grades to suit various project specifications
3. Lightweight, durable panels measuring 2.40m x 1.20m for straightforward installation
4. Integrated drainage slots across all variants to reduce water pressure buildup
5. Resistant to UV exposure and moisture, delivering reliable long-term performance
6. Works with Cordek perimeter vent systems to safely channel hazardous ground gases from beneath buildings into the atmosphere

Applications

Cellvent HX offers flexibility with a selection of grades and depths tailored to specific ground conditions on your site. It integrates seamlessly with Cordek gas membranes, vent outlets, and associated venting components, creating a complete gas protection system.

Depths and grades

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

Available depths and grades include:

Extra

The 135mm Cellcore Cellvent HX Grade 18/24 unites the strengths of the Cellcore HX series with Ventform technology, successfully managing ground heave effects and providing excellent gas venting performance.

Offered in multiple specifications, Cellvent HX integrates easily with gas membranes, vent outlets, and venting accessories to form a complete gas protection system.

Engineered specifically for placement beneath adequately reinforced ground floor slabs in locations where subsidence risk is minimal, the Cordek EPS Void Former Formwork Cellvent HX meets these application requirements.

Delivering equivalent ventilation performance to Ventform 80 products, featuring a 40mm void depth, Cellvent HX is EPS insulation board designed for projects requiring a full gas protection system. Contact us for higher venting capacity options.

The Cellvent HX panel thickness depends on the expected ground heave magnitude.

Info

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