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The Isomass Isocheck 37T acoustic flooring system is designed to replace floorboards and reduce the impact sound transmission through a timber joisted floor where there is little or no access available to enhance the ceiling below for both sound insulation and additional fire protection. When installed as part of a complete sound reduction system, it enables a timber floor to meet the sound transmission regulations of Approved Document E 2003 and subsequent amendments in 2004, 2010, 2013 and 2015. Isocheck 37T consists of 10mm reconstituted ACF (acoustic chip foam) and the added isolation of a 5mm Isofiba layer, bonded to 22mm P5 V313 moisture resistant chipboard. . Isomass offer a free acoustic detail design service to Building Materials Nationwide Ltd customers, please visit the contac t us page to get in touch.