Glass wool or Fiberglass is an insulating material made from glass fiber arranged using a binder into a texture similar to wool. The process traps many small pockets of air between the glass, and these small air pockets result in high thermal insulation properties. It is also used for soundproofing. Glass wool is Readily Available with Foil Lamination and as Unfaced Insulation. It is used Under Roofing Sheet, Above False Ceiling, For Wall Insulation and Home Theater Acoustic Insulation.