PACK OF 20 (Total 20 Units) - Space Saver Roof / Loft Insulation 5.2m x 1160mm x 200mm - This Space Saver Roll is made from glass mineral wool, offering excellent thermal insulation. Designed for use at the joist level in cold roof applications, it effectively reduces heat loss with a thermal conductivity of 0.044W/mK. Additionally, it's an eco-friendly choice, being manufactured from 80% recycled glass. Key Features - Designed for efficient cold roof insulation. Reduces heat loss with 0.044W/mK. Made from 80% recycled glass materials. Provides reliable thermal insulation coverage. Suitable for joist-level installation needs.