September 2011 Roofing Sika at Work Roofing Application Field: Decothane Gamma 20 Case Study at Royal Avenue House, ChelseaProject Requirement This high end block of apartments located close to the Kings Road in Chelsea had asphalt waterproofing on its roof, which was leaking. There were also major issues with the felt detail areas on the roof. Sika Liquid Plastics Solution A Decothane Gamma 20 system from Sika Liquid Plastics was specified. This is a cold, liquid applied system that cures to form a completely seamless waterproof membrane. The full system consists of a Decothane Base Coat, reinforced with Reemat Premium glass fibre matting, and completed with a Decothane Top Coat in Shale Grey. The Decothane waterproof membrane could be applied directly to both the felt and asp

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