Rockwool exterior insulation is a durable and fire-resistant insulation material made from spun rock fibers. It provides excellent thermal insulation, helping to reduce energy consumption and improve comfort levels. Unlike traditional fiberglass or cellulose insulation, rockwool is water-repellent, preventing moisture accumulation that can damage building structures. Its non-combustible nature also enhances fire safety. Rockwool is available in various forms, including batts, boards, and granulate, making it suitable for different applications, such as walls, roofs, and cavity insulation.