Hemp is a fast-growing, low-impact plant crop that produces fine fibres suitable for insulation.Thermafleece NatraHemp is a medium density insulation rich in home-grown hemp fibres and is a safe, efficient and durable alternative when plant fibre is the preferred choice.Thermafleece NatraHemp fits securely between rafters, joists and studs providing excellent thermal insulation performance. Whats more, with a density of 25 kg/m3, Thermafleece NatraHemp can provide good acoustic insulation in a variety of systems.Like all Thermafleece products, it is long-lasting, safe to handle and contributes to a healthier indoor environment by regulating moisture in the building.21.31m2 coverage per pack.48 item pack.DimensionsLength: 1.2m.Width: 370mm.Thickness: 50mm.ApplicationRoofs: loft & warm roof.Walls: timber frame & solid wall.Floors: suspended ground floor & between floor.PropertiesThermal Conductivity: 0.040 W/mKDensity: 25 kgm-3Water Absorption (@100% RH): 17% w/wSpecific Heat Capacity: 1800 Jkg-1K-1