Insulation works by trapping air in tiny pockets within the material, keeping heated or cooled air from escaping and helping maintain a consistent temperature inside the space. Insulation is most effective when it is placed strategically along walls, ceilings, and floors in order to provide a complete thermal envelope around the area.
Insulation materials vary depending on the application but all forms of insulation can help reduce energy use and lower heating and cooling costs. Insulation effectiveness is measured according to its R-value, a number that reflects the material’s resistance to heat flow. The higher the R-value, the better insulation it provides, and the more energy savings you can realize.