This saves weight, material cost and installation time.
Design Engineering XL Damping Material (10 Sheets) - 050223 Interior panels vibrate and generate noise.8 sq ft;Industry leading 4mm thick asphalt free, pure butyl, noise constraining layer to remove the harshest of low frequency noises ;Extra thick 4 mil aluminum stiffening top skin to keep interior panels from flexing and generating noise;Worry-free no sag adhesion to any interior surface, vertical or overhead, even in the most demanding temperature extremes.