Knauf Insulation Loft Roll 44 Combi-Cut 100mm provides a cost-effective thermal insulation solution for cold lofts in new builds, extensions and renovation projects. Manufactured from glass mineral wool, this flexible insulation roll helps reduce heat loss through ceilings and improve the thermal efficiency of buildings. The combi-cut design allows the roll to be divided into narrower sections for installation between standard ceiling joists or used at its full 1140mm width when laying insulation over joists. This versatility helps minimise on-site cutting, reduce waste and improve installation efficiency. With a thermal conductivity of 0.044 W/mK, the roll offers reliable thermal performance for suitable loft insulation applications.
Key Features
100mm thick glass mineral wool loft insulation.
Thermal conductivity of 0.044 W/mK.
Thermal resistance of approximately 2.25 m²K/W.
Combi-cut design for flexible installation between or over ceiling joists.
Can be split into widths suitable for common joist spacings.
Helps reduce heat loss and improve thermal efficiency.
Cost-effective insulation for cold loft applications.
Roll dimensions: 12180mm x 1140mm x 100mm.
Coverage: approximately 13.89m² per roll.
Suitable for trade professionals and DIY customers.
