Acoustic fire-resisting insulating partition, ceiling or lining

摘要

The invention concerns an insulating system having a multi layer panel on each side of a frame or on one side of a frame (C), wherein the said panel comprises
- at least one airtight material (A);
- and at least one cementitious porous material (B) being the most inner layer to cavity, having a porosity from 80 to 95 %, percentage in volume of air voids and water voids, and having a density from 150 to 450 kg / m 3 .