CORDEK LTD: Air Brick
Air brick designed to provide a practical method of venting ground gases from beneath a building, through the perimeter cavity wall construction with the additional use of an adjustable cavity vent. The air bricks can be connected to one of the Cordek venting systems, which when used in conjunction with a suitable membrane, provides an efficient and economical gas protection solution.Features and benefits:Provides a high level of ventilation into both cavity walls and under floor voids.Incorporates a front mounted grill, comprising of evenly spaced voids, designed to resist blockage by debris.Air bricks available in a wide variety of colours to suit selected external masonry.Compatible cavity vents available with option to adjust to required height.Additional adaptors available to extend height and width of cavity vents. Airbricks

Published [04/04/2024]

CORDEK LTD: Air Brick and Adjustable Cavity Vent
Adjustable cavity vent designed to provide a practical method of venting ground gases from beneath a building, through the perimeter cavity wall construction with the additional use of an air brick. Additional adaptors are available to extend height and width of cavity vents.Features and benefits:Incorporates a front mounted grill. Comprising evenly spaced voids. Designed to resist blockage by debris.Adjustable cavity vent for venting ground gases. Ventilation gratings

Published [04/04/2024]

CORDEK LTD: Cellcore HX B
Comprising a cellular construction of moulded expanded polystyrene combined with a robust polypropylene board, which has been designed and tested to tight tolerances to achieve the specified performance characteristics. It is available in a variety of depths and grades to suit the most commonly encountered combinations of soil heave potential and concrete depths.Features and benefits:Reduces the upward force transmitted to the structure.Wide range of depths and grades to suit most applications.Meets the NHBC Technical Standards.Consistent performance supported by extensive testing.Available with integral EPS insulation, permanent formwork for ground beams or voids for ventilation of ground gases by request.Cost effective and reduced carbon footprint. Reduced depth and therefore less excavation. Suitable for most lightweight slabs.Water resistant. Compressible board substructure formwork

Published [04/04/2024]

CORDEK LTD: Cellcore HX Plus
Comprising a cellular construction of moulded expanded polystyrene combined with a robust polypropylene board and a layer of EPS insulation which has been designed and tested to tight tolerances to achieve the specified performance characteristics. It is available in a variety of depths and grades to suit the most commonly encountered combinations of soil heave potential and concrete depths.Features and benefits:Reduces the upward force transmitted to the structure.Wide range of depths and grades to suit most applications.Meets the NHBC Technical Standards.Consistent performance supported by extensive testing.Incorporates an integral layer of EPS insulation available in various thicknesses to meet thermal performance requirements.Cost effective and reduced carbon footprint. Reduced depth and therefore less excavation. Suitable for most lightweight slabs. Water resistant. Compressible board substructure formwork

Published [04/04/2024]

CORDEK LTD: Cellcore HX S
Comprising of a cellular construction of moulded expanded polystyrene combined with a robust polypropylene board, which has been designed and tested to tight tolerances to achieve the specified performance characteristics. It is available in a variety of depths and grades to suit the most commonly encountered combinations of soil heave potential and concrete depths.Features and benefits:Reduces the upward force transmitted to the structure.Wide range of depths and grades to suit most applications.Meets the NHBC Technical Standards.Consistent performance supported by extensive testing.Available with integral EPS insulation or voids for ventilation of ground gases by request.Cost effective and reduced carbon footprint.Moulded for consistent performance and durability.Reduced depth and therefore less excavation.Suitable for most lightweight slabs.Water resistant. Compressible board substructure formwork

Published [04/04/2024]

CORDEK LTD: Cellform HX
Comprising of a cellular construction of moulded expanded polystyrene combined with a robust polypropylene permanent formwork, which has been designed and tested to tight tolerances to achieve the specified performance characteristics. It is available in a variety of depths and grades to suit the most commonly encountered combinations of soil heave potential and concrete depths.Features and benefits:Reduces the upward force transmitted to the structure.Wide range of depths and grades to suit most applications.Meets the NHBC Technical Standards.Consistent performance supported by extensive testing.Integral, permanent formwork to suit the depth / width of the ground beam.Manufactured to suit ground beam dimensions, range of accessories available. Permanent insulation formwork (PIF)

Published [04/04/2024]

CORDEK LTD: Cellvent HX
This product combines the benefits of Ventform with the Cellcore HX range. It alleviates the effects of ground heave and provides a gas venting medium. It is designed for use under suitably reinforced ground floor slabs. The depth is dependent upon the amount of ground heave that has been predicted.Features and benefits:Provides combined ground heave protection and gas venting capabilities in a single product.Range of thickness and grades to suit most project requirements.Light, robust and easy to install panels.All variations include drainage slots to alleviate water pressure.Unaffected by UV light and water.Can be connected to the Cordek range of perimeter vents to vent hazardous ground gasses from beneath the building footprint to the atmosphere. High-density expanded polystyrene (HDPS) substructure formwork

Published [04/04/2024]

CORDEK LTD: Circular Gulley Vent - CGV-022
A range of ground level vent boxes designed to provide a practical and aesthetic method of venting ground gases from beneath a building, to the external atmosphere. The vent boxes are designed to be connected to one of the Cordek passive gas venting systems and installed within the external landscaping. The use of vent boxes is recommended where the use of alternative vent options is precluded due to the type of external wall construction i.e. cladding, glazed façades.Features and benefits:Various different vent box dimensions and geometries.Range of lid types, manufactured from either stainless or galvanized steel.Vent box lids available with either perforations or slots to suit project requirements and venting design.Supported by full range of accessories to provide robust connection to Cordek venting system.Include base connection to stormwater collection, land drainage or soakaway system. Discharge and ventilating stack terminations

Published [04/04/2024]

CORDEK LTD: Filcor EPS
The versatility of Filcor means that any shape, size or profile can be manufactured with relatively short lead times. In addition, a range of materials of increasing compressive strengths are available to meet the loading requirements of the application, whilst also providing the most cost effective solution. It is available in a range of grades to meet the requirements of BS EN 13163: 2012.Features and benefits:A range of compressive strengths available.Lightweight and easy to handle.Available as standard sheets or blocks.Can be profiled to customer requirements.Provides a high degree of insulation.Flame retardant (FR) properties. Expanded polystyrene (EPS) boards

Published [04/04/2024]

CORDEK LTD: Gas Resistant DPC
A polymeric DPC which is robust and flexible which performs under high compressive loads.Features and benefits:Multiple physical properties, including resistance to methane, carbon dioxide and radon.Flexible, even at low temperatures.Mortar adhesion properties.Available in a range of widths to suit a variety of applications and helps to minimize wastage. Gas-resistant damp-proof courses

Published [04/04/2024]

CORDEK LTD: Gas Resistant Self Adhesive Membrane
Self-adhesive membrane which is manufactured using an aluminium/ polythene laminate coated on one surface, with an additional layer of self-adhesive polymer modified bitumen.Features and benefits:Incorporates an aluminium foil core to provide resistance to the passage of methane, carbon dioxide and radon gases.Provides additional waterproofing protection to the structure as part of an overall waterproofing system.Adhesion properties to primed surfaces.Can be installed in both vertical and horizontal applications above and below ground. Bitumen sheets

Published [04/04/2024]

CORDEK LTD: Gas Venting Bollard - 025
Gas venting bollard which is usually installed in locations where alternative venting methods, such as air bricks, cannot be used or where a vent with a high level of free air flow is required.Features and benefits:Available in a wide range of material types and finishes.Can be positioned at large centres due to high level of free air flow.High quality, robust construction.Elevated vent position to avoid potential for water and/ or debris ingress. Discharge and ventilating stack terminations

Published [04/04/2024]

CORDEK LTD: Gas Venting Bollard - 026
Gas venting bollard which is usually installed in locations where alternative venting methods, such as air bricks, cannot be used or where a vent with a high level of free air flow is required.Features and benefits:Available in a wide range of material types and finishes.Can be positioned at large centres due to high level of free air flow.High quality, robust construction.Elevated vent position to avoid potential for water and/ or debris ingress. Discharge and ventilating stack terminations

Published [04/04/2024]

CORDEK LTD: Ground Level Vent Box - CGV-017
A ground level vent box without a lid designed to be connected to one of the Cordek passive gas venting systems and installed within the external landscaping.Features and benefits:Various different vent box dimensions and geometries.Range of lid types, manufactured from either stainless or galvanized steel.Vent box lids available with either perforations or slots to suit project requirements and venting design.Supported by full range of accessories to provide robust connection to Cordek venting system.Side connection into vent box prevents surface water from entering the gas inlet.Removable mesh over drain outlet to prevent blockage by debris.Include base connection to stormwater collection, land drainage or soakaway system. Discharge and ventilating stack terminations

Published [04/04/2024]

CORDEK LTD: Ground Level Vent Box - CGV-018
A ground level vent box stainless steel slotted lid designed to be connected to one of the Cordek passive gas venting systems and installed within the external landscaping.Features and benefits:Various different vent box dimensions and geometries.Range of lid types, manufactured from either stainless or galvanized steel.Vent box lids available with either perforations or slots to suit project requirements and venting design.Supported by full range of accessories to provide robust connection to Cordek venting system.Side connection into vent box prevents surface water from entering the gas inlet.Removable mesh over drain outlet to prevent blockage by debris.Include base connection to stormwater collection, land drainage or soakaway system. Discharge and ventilating stack terminations

Published [04/04/2024]

CORDEK LTD: Ground Level Vent Box - CGV-019
A ground level vent box stainless steel perforated lid designed to be connected to one of the Cordek passive gas venting systems and installed within the external landscaping.Features and benefits:Various different vent box dimensions and geometries.Range of lid types, manufactured from either stainless or galvanized steel.Vent box lids available with either perforations or slots to suit project requirements and venting design.Supported by full range of accessories to provide robust connection to Cordek venting system.Include base connection to stormwater collection, land drainage or soakaway system.Side connection into vent box prevents surface water from entering the gas inlet.Removable mesh over drain outlet to prevent blockage by debris. Discharge and ventilating stack terminations

Published [04/04/2024]

CORDEK LTD: Ground Level Vent Box - CGV-020
A ground level vent box galvanized steel slotted lid designed to be connected to one of the Cordek passive gas venting systems and installed within the external landscaping.Features and benefits:Various different vent box dimensions and geometries.Range of lid types, manufactured from either stainless or galvanized steel.Vent box lids available with either perforations or slots to suit project requirements and venting design.Supported by full range of accessories to provide robust connection to Cordek venting system.Side connection into vent box prevents surface water from entering the gas inlet.Removable mesh over drain outlet to prevent blockage by debris.Include base connection to stormwater collection, land drainage or soakaway system. Discharge and ventilating stack terminations

Published [04/04/2024]

CORDEK LTD: Ground Level Vent Box - CGV-021
A ground level vent box galvanized steel perforated lid designed to be connected to one of the Cordek passive gas venting systems and installed within the external landscaping.Features and benefits:Various different vent box dimensions and geometries.Range of lid types, manufactured from either stainless or galvanized steel.Vent box lids available with either perforations or slots to suit project requirements and venting design.Supported by full range of accessories to provide robust connection to Cordek venting system.Include base connection to stormwater collection, land drainage or soakaway system.Side connection into vent box prevents surface water from entering the gas inlet.Removable mesh over drain outlet to prevent blockage by debris. Discharge and ventilating stack terminations

Published [04/04/2024]

CORDEK LTD: Heaveguard
It is a compressible expanded polystyrene (EPS), specifically manufactured within a critical density range.Features and benefits:Water resistant.Suitable for projects where the foundations are below the water table.Available in various thicknesses.Reduces the lateral force transmitted to the structure, meets the NHBC’s Technical Standards, available as a pile collar to aid installation of Cordek’s Cellcore range. Permanent insulation formwork (PIF)

Published [04/04/2024]

CORDEK LTD: Puraflex VOC Membrane
A high performance hydrocarbon and chemical resistant barrier with resistance to a wide range of pollutants including hydrocarbons, industrial chemicals, toxic waste, natural and radioactive gases. It acts as a high performance DPM and comprises of protective polymeric layers either side of a chemical resistant inner core.Features and benefits:Provides additional damp proofing protection to the structure.Robust membrane construction.Resistance to both puncturing and tearing. Plastics sheets

Published [04/04/2024]

CORDEK LTD: Radon Membrane
A high performance gas membrane which can also act as a high performance DPM.Features and benefits:Economical method of providing radon protection to newly constructed buildings.Provides additional damp proofing protection to the structure; no requirement for a separate DPM.Robust membrane with a high resistance to damage and puncturing. Plastics sheets

Published [04/04/2024]

CORDEK LTD: Radon Sump
An extraction point for radon gases beneath buildings within radon affected areas. If a radon sump is positioned within a permeable granular layer beneath a ground floor slab and subsequently connected to an extract fan, then the penetration of hazardous radon gas into the building is minimized. Cordek also provide a range of additional components including membranes, DPC's and vent outlets to provide a solution to the issues posed by radon gas to new constructions.Features and benefits:Can reduce the risk posed by radon gas by minimizing the pressure beneath the building.Robust polypropylene construction for positioning beneath ground slab constructions.Can be used in conjunction with Cordek Radon Membrane and associated accessories to provide ‘full’ radon protection.Installed during construction for ‘activation’ post construction if required. Depressurization sumps

Published [04/04/2024]

CORDEK LTD: Rectangular Gulley Vent - CGV-023
A range of ground level vent boxes designed to provide a practical and aesthetic method of venting ground gases from beneath a building, to the external atmosphere. The vent boxes are designed to be connected to one of the Cordek passive gas venting systems and installed within the external landscaping. The use of vent boxes is recommended where the use of alternative vent options is precluded due to the type of external wall construction i.e. cladding, glazed façades.Features and benefits:Various different vent box dimensions and geometries.Range of lid types, manufactured from either stainless or galvanized steel.Vent box lids available with either perforations or slots to suit project requirements and venting design.Supported by full range of accessories to provide robust connection to Cordek venting system.Include base connection to stormwater collection, land drainage or soakaway system. Discharge and ventilating stack terminations

Published [04/04/2024]

CORDEK LTD: Rectangular Gulley Vent - CGV-024
A range of ground level vent boxes designed to provide a practical and aesthetic method of venting ground gases from beneath a building, to the external atmosphere. The vent boxes are designed to be connected to one of the Cordek passive gas venting systems and installed within the external landscaping. The use of vent boxes is recommended where the use of alternative vent options is precluded due to the type of external wall construction i.e. cladding, glazed façades.Features and benefits:Various different vent box dimensions and geometries.Range of lid types, manufactured from either stainless or galvanized steel.Vent box lids available with either perforations or slots to suit project requirements and venting design.Supported by full range of accessories to provide robust connection to Cordek venting system.Include base connection to stormwater collection, land drainage or soakaway system. Discharge and ventilating stack terminations

Published [04/04/2024]

CORDEK LTD: Tri-Gas Membrane
A high performance gas membrane for use in situations where resistance to methane, carbon dioxide and/ or radon gases is required. The multilayer 0.4 mm thick membrane includes an ultralow permeability aluminium foil core encapsulated between a number of additional low density polyethylene (LDPE) layers and a reinforcing grid to form a single sheet membrane.Features and benefits:Resistance properties with low permeability to ground gases including methane, carbon dioxide and radon.Provides additional damp proofing protection to the structure (no requirement for a separate DPM).Reinforced membrane construction with high resistance to both puncturing and tearing.Complies with relevant industry codes and guidance including CIRIA and BS 8485:2015+A1:2019. Plastics sheets

Published [04/04/2024]

CORDEK LTD: Ventform
It provides a passive gas venting medium. When used in combination with perimeter vents and a suitable gas membrane system, it will provide an effective method of protecting structures against the ingress of harmful ground gases. Features and benefits:Highly effective venting medium suitable for ground gas affected sites as part of a gas protection system.Provides a high degree of insulation and is manufactured from expanded polystyrene which achieves a BREEAM rating of A+.Range of thicknesses and grades to suit most project requirements.Light, robust and easy to install panels.Ventform panels are resistant to UV light, water and are flame retardant. They contain no CFCs or HCFCs. High-density expanded polystyrene (HDPS) substructure formwork

Published [04/04/2024]