18 December 2008
CMS Acoustics Roks at Navigation Road
Construction group Rok Harrison has used Regupol 7210C, a high performing acoustic underscreed material, to exceed impact and airborne sound requirements for Part E compliance at the new £11 million Navigation Road student accommodation development in York.
Constructed on the derelict site of a former bus depot, Navigation Road comprises 272 rooms in 3 blocks. As a high quality development, an acoustic treatment needed to be identified for the pre-cast concrete plank subfloors used in two of the blocks, to control impact sound generated from footfall and to help reduce the transmission of airborne sound. As such, the acoustic consultants on the project recommended Regupol 7210C to achieve Part E compliance.
Regupol 7210C was used to cover a total floor area of approximately 17,000m2 in more than 90 rooms, over all 3 storeys of the two accommodation blocks. On-site testing confirmed that Regupol 7210C delivered exceptional sound insulation levels of 44.3dB and 55.4dB (mean average figures), for impact and airborne sound respectively, exceeding the Part E requirements of 62dB and 45dB.
Darren Hannar, project manager, Rok Harrison, comments: “As Regupol 7210C does not require separate perimeter strips to isolate the interface between the floor and wall, the material can be applied very quickly and efficiently, achieving complete insulation for excellent performance levels. This ease of using Regupol 7210C, reduced our preparation time for the flooring elements and enabled us to complete the development ahead of the new student term.”
Manufactured from recycled rubber granulate, Regupol 7210C is supplied in standard sheet sizes of 2,300mm x 1,150mm, with a guaranteed material thickness of 5mm. Available exclusively in the UK through CMS Acoustic Solutions, the material is compatible with all types of floor screed. At the Navigation Road development, a 40mm Gyvlon flowing screed was applied directly on top of the Regupol 7210C.
Paul Absolon, technical director, CMS Acoustics, concludes: “At just 5mm thick, Regupol 7210C provides superior sound insulation levels without affecting the construction height of the floor. Ideal for new build projects such as Navigation Road, Regupol 7210C undergoes minimal creep, even under high loads, maintaining its high performance over the lifetime of the installation.”
