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Gas and VOC system accessories
A wide range of ancillaries are available directly from Cordek to meet the needs of most applications.
Gas-resistant Joint/Lap tapes – For installations where welding techniques are not being utilised, Cordek provide a range of jointing tapes for use when sealing laps between individual sections of membrane, to prevent ingress of ground gas or moisture.
Top Hats – Preformed units manufactured from a variety of materials in order to provide a simple but effective method of sealing around service penetrations e.g. pipes, ducts etc. that penetrate the membrane.
DPC’s – For each membrane type offered by Cordek a corresponding damp proof course (DPC) is also available to provide continuity of protection through / beneath cavity wall and masonry constructions.
Detailing Strips – Provide a simple and cost effective method of sealing membrane penetrations such as steel columns, pile caps etc. with the use of a self- adhesive strip.
Self-Adhesive Membranes & Primers – These products are commonly utilised where the gas protection system is required to be positioned vertically and therefore the self-adhesive nature aids installation prior to backfilling or further construction. Primers are required to aid adhesion.
Correx Protection Boards – In order to protect Cordek membrane systems from damage during construction, it is recommended that Correx protection boards are positioned over the membrane prior to placement of reinforcement, concrete or backfill.
Perimeter Vents – Cordek offer a wide variety of perimeter vent types, which when connected to either Ventform or Cellvent positioned beneath the slab, allow safe passage of any ground gas out to the atmosphere where it can disperse.
Radon Sumps – Where full radon protection is a requirement, Cordek Radon Sumps can be used as a method of collecting radon gas from beneath the footprint of the building so that it can be extracted via a perimeter venting system.