The British Gypsum Gypfloor SIF1 Floor Channel contains a specially built neoprene acoustic insulator that meets EN 14195 requirements. This is made to provide support for the Gypfloor SILENT floor system, which is suitable for both refurbishment and remodelling projects on timber joist floors, as well as new build and renovation, to provide an overall increase in acoustic insulation, enabling the internal floors to meet the recommended specifications of relevant Building Regulations. The device provides sound protection from both impact and airborne noise by only adding 7mm to the top joists level, resulting in a small increase in floor depth.