Rockwool blankets, made by wrapping rockwool in fire-retardant non-woven fabric, are a common winter insulation material. Their function is to prevent cold during winter construction and are often used for concrete insulation. This material meets most construction sites' performance requirements for such cold-resistant materials. It is well-known that modern construction projects generally have stringent requirements for insulation materials, especially in terms of fire resistance. This material boasts an A1 fire rating and a low thermal conductivity of about 0.04, making it quite impressive in terms of performance.
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