Insulation

Insulation reduces or stops the flow of energy. Electricity and heat are two main types of energy that insulators prevent from moving. The insulator on an electric cord stops electricity from hurting a person that touches the cord.

The main types of insulation are:

• Thermal insulation, materials used to reduce the rate of heat transfer
• Building insulation, thermal insulation added to buildings for comfort and energy efficiency
• Electrical insulation, materials used to reduce the conduction of electricity
• Soundproofing, reducing sound