HIGH LOFT provides thermal insulation for cold room construction in both new and renovated projects. According to the Energy Saving Trust in an uninsulated home: -66% heat loss through uninsulated solid walls. 33% heat loss through uninsulated walls. 25% heat loss through uninsulated loft/roof space. 20% heat loss through windows & doors. And, Most Importantly it is Non Allergy, Itch free. Thermal Construction Insulation is made of recycled Polyester and the amount of recycled materials is 70%. Recycled polyester can be doubled up to make around 100 mm or 220 mm of thickness. It makes houses more energy efficient and helps to feel warmer. It is itch-free and anti-allergy. Features and Specifications: Features: Recycled polyester which can be doubled up to make around 100 mm of thickness Making houses more energy efficient and helping to feel warmer. Itch free and anti-allergy. Specifications: Tested, Proven, and Trusted Material: Polyester. Amount of recycled materials is 70%. Length: 5 meters. Width: 200 mm. Thickness: 50 mm. Coverage: 1.85 m². R-value: 2.29 m² K/W. Origine: Manufactured In The UK Compliant to 4 British Safety Standards: * BS 5803: Part 4: 1985 Section 2 * BS 5803: Part 4: 1985 Section 3 * BS 1425: Part 1: 1991 (2018) * BS 5852: 1982 Part 2