Acoustic bulkhead class A-30.
The system is made up by a combination of mineral wool with different thickness and density, the total panel thickness is 70 mm.
Two separate panels composed of mineral wool, with high density, and in the external face of each panel there will begalvanized steel or stainless steel sheets.
The 2 panels are separated by mineral wool, with low density, supplied in rolls.
The same as the standard bulkheads this type of bulkheads is supplied with the necessaryprofiles for installation.
Moreover, they would also have A-15, A-0, B-30, B-15 and B-0 class.