Knauf Loft Roll 40
Product Description
Loft Roll 40
For pitched roofs, floors and partitions
Description
Loft Roll 40 is a flexible glass mineral wool quilt which is lightweight, flexible, resilient and non-combustible. The rolls are 1140mm wide and are either partially perforated or fully cut to produce either 2 rolls 570mm wide or 3 rolls 380mm wide.
Application
Loft Roll 40 is primarily used for the thermal insulation of pitched roofs at ceiling level. However, it can also be used to thermally insulate floors and partitions, or wherever a lightweight mineral wool quilt is required. When used to insulate at ceiling level it is usually laid in two layers, with the first layer between the joists and the second layer at right angles to the joists.
Standards
Loft Roll 40 is non-combustible glass mineral wool, defined as mineral wool in BS 3533: 1981 and is manufactured in accordance with BSI Quality Assurance Standard BS EN ISO 9001: 2000, and Product Standard EN 13162.
Thermal
Loft Roll 40 has a thermal conductivity of 0.040 W/mK.
Fire
Loft Roll 40 is classified as Euroclass A1 to BS EN ISO 13501-1.
Benefits
Lightweight and economic insulation quilt
• Produced for use with timber joists at 400mm and 600mm centres
• Partially perforated or fully cut
• Provides thermal, acoustic and fire performance
Environmental
| ECOSE® Technology |
![]() Knauf Insulation mineral wool products with ECOSE® Technology benefit from a revolutionary, bio-based, formaldehyde-free binder technology, based on rapidly renewable materials, instead of petro-based chemicals. It reduces embodied energy and delivers superior environmental sustainability. The technology has been developed for Knauf Insulation’s glass and rock mineral wool products, enhancing their environmental credentials without affecting the thermal, acoustic or fire performance. Insulation products made with ECOSE® Technology contain no dye or artificial colours – the colour is completely natural. |

