6.84 m2 per pack Knauf Loft Roll 44 at 200 mm is a top‑tier glass mineral wool insulation quilt designed for ceiling level loft insulation in cold lofts and pitched roofs. It has a thermal conductivity of about 0.044 W/m·K, giving a thermal resistance (R‑value) of approximately 4.50 m²·K/W at this thickness. The roll is 1,140 mm wide and comes “combi‑cut”, meaning it is partially perforated so it can be torn into two strips of 570 mm (for 600 mm joist centres) or three strips of 380 mm (for 400 mm centres), or used full‑width, which aids faster and more accurate installation. It is non‑combustible, with a Euroclass A1 fire rating, made using Knauf’s eco‑friendly ECOSE® binder which lowers formaldehyde and VOC content, plus it is lightweight, rot‑proof, odourless and resistant to mould and vermin. At 200 mm, it offers excellent thermal and acoustic performance, making it a strong choice for achieving modern insulation standards and reducing heat loss through the loft.
