Hypertec Type Wall Sound is a self-supporting panel system, insulated with rock wool for wall and partition applications, requiring a high degree of resistance to fire, with sound absorption and sound insulation. The Sound consists of a micro ribbed external steel facing, an internal flat, but perforated liner, with an insulation core of high density orientated rock wool, arranged perpendicular to the plane of the panel and positioned in strips, laid longitudinally with off-set joints and transversally compacted, in such a way as to completely fill the void between the two metal facings. The Sound has maximum panel length of 15,500 mm. The Hypertec Type Wall Sound should not be used for climatised buildings.