Isothermal sound insulating composite panel comprises insulating core between two rigid facings comprising two layers of rigid plastic foam separated by spacing wedges

摘要

The composite panel comprises an insulating core located between two rigid facings (1,2). The core comprises two layers of rigid plastic foam (3A,3B) which are held separated from each other by spacing wedges (4). These wedges delimit several caissons (C1,C2,C3 ..). Low density insulating material (6) is housed in the caissons.