SIKA AT WORK BARCLAYS DATA CENTRE, GLOUCESTER ROOFING: Decothane Ultra 25 cold-applied liquid waterproofing system, 130mm Decothane insulation board, S-Vap 5000 self-adhesive vapour control layer and carrier membrane, Decostik adhesive, Primer 600BACKGROUND Data processing is critical to any banking operation and this large data centre in Gloucester is a 24/7 facility providing data services for ATM cash machines operated by international banking giant, Barclays. To ensure the smooth operation of the advanced IT equipment within the data centre, there is extensive rooftop plant and air handling equipment on the 3000m 2 roof which must remain operational at all times and cannot be lifted, moved or otherwise disturbed. The existing roof consisted of a single ply membrane instal

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