Insulation

Definition

Insulation is a material or method used to reduce the rate of heat transfer. It works by minimizing conduction, convection, and radiation.

5 Must Know Facts For Your Next Test

1. Insulation materials have low thermal conductivity, which helps to slow down the transfer of heat.
2. Common types of insulation include fiberglass, foam, and reflective barriers.
3. The effectiveness of insulation is measured by its R-value; higher R-values indicate better insulating properties.
4. Insulators are crucial in preventing energy loss in buildings and improving energy efficiency.
5. In thermodynamics, insulation helps in maintaining temperature by reducing unwanted heat exchange.

Review Questions

• What property of insulation materials makes them effective at reducing heat transfer?
• How is the effectiveness of an insulating material quantified?
• Name three common types of insulating materials.

Related terms

Thermal Conductivity: A measure of a material's ability to conduct heat; lower values indicate better insulating properties.

Convection: The transfer of heat through the movement of fluids (liquids or gases).

R-value: A measure of thermal resistance used in the building and construction industry; higher values represent better insulation performance.