Glass Wool
Glass wool can be a loose-fill material, blown into attics, or together with an active binder, sprayed on the underside of structures, sheets, and panels that can be used to insulate flat surfaces such as cavity wall insulation, ceiling tiles, curtain walls, and ducting. Glass wool insulation products can be applied in multiple areas, from ducts and pipes to walls. Although most commonly used for ceilings in residential buildings, fibreglass is also a very effective insulator in the technical insulation applications : Glasswool is primarily made from recycled glass. The glass is melted in a furnace then sent to a spinner to create fibres. The glasswool fibres create millions of tiny air pockets which trap the air. The air pockets make glasswool a poor conductor of heat, an important requirement of effective insulation batts.