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structural elements
Triton supplies Type C waterproofing for landmark London scheme
AHMM. The development, sited on London’s City Road, comprises a new 16-storey office tower, a new public square and refurbished existing buildings to the rear. The new 2-storey basement has been water-
T
proofed using a Type C system applied internally, to provide drained protection in accordance with BS 8102: 2009. The waterproofing system has been supplied by Triton Systems. During demolition of the existing structure, the
sub-contractor (Dunne Group) worked closely with Triton’s CSSW qualified technical team, to design the most appropriate and cost effective waterproofing system that was subsequently approved by all relevant parties as the most suitable protection against potential ground water ingress. 2,000m2
of Platon P20 cavity drain membrane was
subsequently specified for all earth retaining basement walls on both levels and the ground bearing slab at lower level. BBA certified Platon P20 membrane is a high capacity drainage membrane recommended for use where it is important to significantly reduce the risk of blockages behind the membrane caused by lime deposits. Prior to the installation of the membrane, all fresh concrete at earth retaining elevations was
he White Collar Factory will be a mixed-use area of workspace, residential and retail, designed by architects,
treated with Triton’s Anti Lime solution. This treatment hardens and dust proofs the concrete as well as locks in free lime to further reduce the risk of blockages in the drainage elements of the system. Any water entering the construction at upper
and intermediate basement levels is gravity drained behind the studded P20 membrane down to a waterproof concrete bund/upstand which provides a 100mm cavity, onto which internal block walls can be built. A series of 40mm holes at 900mm centres were
drilled within the bund to allow any water to drain down behind the membrane installed to the walls at lower level. The bund was also waterproofed with Triton’s cold liquid applied TT Vapour Membrane (TTVM) that will prevent potential damp patches being visible on the internal block wall faces.
01322 318830
www.tritonsystems.co.uk enq.180
Call us 01296 481220
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www.blowerproofliquid.co.uk enq.182
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