Insulation reduces the exchange of heat through a surface such as a wall, attic, duct or roof. In a well-insulated home, less warm air escapes from the house during the winter, and less cool air escapes during the summer, reducing the amount of energy needed for heating and cooling (see References 1).

How much does insulation save in energy?

The EPA estimates that the average homeowner can save 15% on heating and cooling costs (11% of total energy costs) by adding insulation in attics, crawl spaces, and basement rim joists. For most folks, that’s about $200 in savings per year.

Does insulation increase efficiency?

How energy-efficiency upgrades like loft insulation can increase the value of your home. Making energy-efficiency upgrades to your home will increase its value. They will also help you save money on your energy bills. Fact.