Insulation and cable foil
The barrier properties and heat reflectivity of aluminium foil are widely used in building panels to improve insulation performance in modern building systems.
Aluminium foil is also used as a skin for heat-insulating and incombustible materials to provide high performance insulation for pipe work and ducting.
Adhesive tape
The adhesive tape used to secure the laminated material is also based on aluminium foil or its reflective surface, corrosion-resistance and long life.
In electrical cables, aluminium foil helps give long-term insulation against moisture and attack from naturally occurring corrosive elements found above and below ground.
An insulator
Aluminium foil also acts as an insulator against the magnetic and radio frequency emissions associated with electrical cables. As a sheath for fiber-optic cables, aluminium foil uses its electrical conductivity to act as a “tracer” to enable testing of the integrity of cable links – as well as helping to provide the long-term protection every cable needs.
Fireproofing
In fire walls for vehicles and fireproof doors and building panels, aluminium foil stops access to the oxygen required to support flames.
