Soft to handle, Presents no known threat to the environment, with zero Ozone Depletion Potential & zero Global Warming Potential, Eco-friendly insulation made using recycled glass bottles & with ECOSE Technology, containing no artificial colours or added dyes, Compression packed for easier handling, Greatly improves the thermal efficiency of your home, with a thermal conductivity of 0.044W/mk & thermal resistance of 4.5m 2K/W, Heat rises & 26% of all the heat lost in an un-insulated home is through the roof, Lightweight & economical, it provides fire, thermal & acoustic insulation