The Isover Spacesaver Loft Roll is a low-density glass mineral roll that is mainly used for cold roof applications in either new builds or renovation projects. This product is highly environmentally friendly and is manufactured from up to 86% of recycled post-consumer glass that would otherwise go to landfill. This product also has a zero Ozone Depletion potential and no Global Warming potential with a t hermal conductivity 0.044W/mK. Dimension: 5.2m x 1.16m x 200mm This roll is available in the following thicknesses: 100mm  150mm 170mmm 200mm