This big value JCW Acoustic Screed Foam Pack reduces impact and airborne noise on concrete floors.It contains everything needed before the screed is laid, including:JCW Acoustic Screed Foam.52 linear metres x 1.2 metres wide x 10mm thick (62.4 m2 per pack).Floor area coverage 58.8 m2 approx.JCW Acoustic Flanking Strip.Foam strip on 50 linear metre roll x 150mm wide x 8mm thick.JCW Black Cloth Jointing Tape.50 metres x 50mm wide tape.65mm sand & cement screed can be laid directly on top of JCW Acoustic Screed Foam. 40mm proprietary screeds (min 80kg/m2) require a polythene layer above the JCW Screed Foam, covering the whole floor area, with overlapped and taped joints.Concrete floorsAcoustic Screed Foam Pack can be used on pre-cast concrete plank floors that have a minimum mass of 300 kg/m2 with a ceiling type illustrated above.Suitable for underfloor heating.Each pack weighs approx. 20kg.Please note only 10x packs are stocked at any one time, any orders over 10x packs will be on a 3-4 week lead time.