Building insulation refers broadly to any object in a building used as insulation for any purpose. While the majority of insulation in buildings is for thermal purposes, the term also applies to acoustic insulation, fire insulation, and impact insulation (e.g. for vibrations caused by industrial applications). Often an insulation material will be chosen for its ability to perform several of these functions at once.

Insulation
Building insulation includes materials used for thermal, acoustic, fire, and impact protection. Insulation is crucial for energy efficiency, noise reduction, fire safety, and vibration control in buildings, often serving multiple functions simultaneously to improve overall building performance and comfort.