Used primarily for thermal and acoustic insulation in buildings, fiber glass wool is installed in walls, ceilings, and roofs to reduce heat transfer and improve energy efficiency. It is also effective in reducing noise transmission, making it suitable for use in residential, commercial, and industrial settings. Due to its fire-resistant properties, it serves as a passive fire protection material in structural applications. Additionally, it is used in HVAC systems to insulate ducts and prevent energy loss. Its lightweight and non-combustible nature make it a preferred choice in construction and industrial insulation.