SOPRA-CELLULOSE insulation is made of more than 80% recycled paper and cardboard. It consists of loose small grey fibers, smooth to touch. SOPRA-CELLULOSE is also odourless and has a low VOC content. It acts as a protective shield to reduce the transmission of heat and sound. Efficient and environmental-friendly, SOPRA-CELLULOSE will reduce energy consumption and improve comfort for a wide range of climatic conditions.