The ISO Blanket Pro high performance sound blocking membrane features a soft thermobonded felt layer on one of the sides. The blanket is a blend of latest technology and flexibility for sound insulation of airborne noise, flanking noise transmission and finds application in soundproofing of walls and ceilings. Bitumen based damping sheet consists of bitumen fillers with added mineral fillers and synthetic rubber to produce highly visco-elastic material that creates efficient barrier against noise transmission. It´s coated with a polyethylene film on both sides. One side features polyester fiber which enhances sound insulation to make the professional version of the ISO Blanket. The blankets are sold in rolls of 5m2 (1,00m x 5,00m) each and needs to be installed between plasterboard layers.