IKO PLC has provided an aesthetic green roof on Riverbank House, a
prestigious 10 storey building constructed for Pace Investments /
The City of London Corporation comprising 29,000 square metres of
high quality office space which overlooks the River Thames in the
heart of EC4 in the city of London.
National envelope contractor, Prater Ltd, installed an IKOgreen extensive green roof system as the finished surface and an IKO PermaTEC Anti-Root Monolithic Hot Melt waterproofing system completed the impressive 3500m2 roofing project.
Prater worked with IKO to refine the original specification with a fully bonded waterproofing system which was then proposed to main contractor, Sir Robert McAlpine Limited. This solution provided extra waterproofing security under the green roof system, and was approved by David Walker Associates, and EPR Architects Ltd.
The structure comprised of a Kingspan Envirodeck Composite Panel, mechanically fixed to steel support purlins to provide a suitable substrate to receive the PermaTEC / IKOgreen system. The PermaTEC Anti-Root waterproofing system included 6mm of polyester reinforced rubberised bitumen and a reinforced protection cap sheet fully bonded to the substrate. This was then followed by IKOgreen Plasfeed 5+1, a drainage/reservoir board providing a lightweight drainage layer and water reservoir to sustain plant growth, and IKOgreen Extensive Growing Substrate. Finally an IKOgreen Sedum Blanket, which was carefully chosen to provide colour and interest throughout the year and offer an ‘instant greening’ of the roof finish, was used to complete the roof.
Speaking about the project, Sean Neary, Associate Director at Prater, said: “When specifying a roofing supplier for the project, we looked for a product which was commercially viable, aesthetically pleasing and sustainable. IKO ticked all of those boxes as well as being cost effective. This resulted in the project being specified with a quality product and with cost savings to the final build.”
PermaTEC, developed by IKO PLC, is a highly advanced and innovative hot melt waterproofing system, which provides environmental benefits as well as market leading performance. Providing zero wrapper waste, lower application temperatures and anti-root protection, the product provides many operational advantages. It is also manufactured in the UK, with a dramatically lower carbon footprint than imported systems. IKO’s green roof offers the end user improved air quality and aesthetic appearance, better thermal and acoustic performance and increased roof life expectancy.
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