Tag Archives: Visqueen TorchOn Tanking Membrane

Visqueen chosen supplier for Costain Skanska JV Rail Project in London

Visqueen Building Products is proud to be a part of the ventilation and access shafts project at Crossrail Contract 360 Eleanor Street and Mile End Shafts, on the route between Whitechapel and Liverpool Street stations.

IMG_4672Crossrail awarded the project to Costain Skanska JV in 2012. Worked started towards the end of that year and has seen two shafts built to around 30 metres below ground. The shafts will house ventilation and emergency exit facilities between Stratford and Whitechapel stations.

At Mile End, work included the relocation of a coach park and all-weather football pitch plus ensuring continued access to the Mile End Park Leisure Centre for the local community throughout the project.


The ventilation shafts along the Crossrail route have been designed to ensure optimal air movement within the tunnels. As Crossrail trains will be air-conditioned, they will release warm air. The shafts will help extract this warm air out of the tunnels.

SIG Construction Accessories in Thurrock, stockists of Visqueen Building Products tanking membranes, supplied the project with Visqueen TorchOn Tanking Membrane and the Visqueen TreadGUARD1500 protection board.

Two layers of the TorchOn Tanking Membrane have already been installed; this has then been protected by TreadGUARD 1500 to ensure the membrane is protected during construction of the RC Slab.

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Visqueen TorchOn Tanking Membrane – A heavy duty waterproofing membrane

Visqueen TorchOn Tanking Membrane is a robust waterproofing membrane, used for heavy duty tanking and gas proofing applications. It can be used both vertically and horizontally above and below ground level to prevent the ingress of water.

  • Robust tanking membrane
  • Suitable for gas protection¬†applications
  • Torch bonded laps provide a homogenously sealed junction
  • Ideal for cold weather application
  • Used to waterproof basements, car parks, lift pits, reinforced concrete slabs, retaining walls

Visqueen TorchOn Tanking Membrane should be applied as a two layer system when used as a tanking system for below ground structures where high levels of hydrostatic (water) pressure exist in conjunction with an internal waterproof render in accordance with BS8102: 2009 type A structures.

Visqueen TorchOn Tanking Membrane can be used as a single layer system when used as a horizontal damp proofing membrane or in low risk situations. All laps should be a minimum of 150mm. The loading screed or floor slab which is laid on top of the membrane should be adequate to resist any hydrostatic water pressure.

See the datasheet below:


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