Insulation may not be pretty to look at, but it’s a key player in the energy efficiency of your home. It helps to limit the flow of outside temperatures inside and creates a barrier that keeps hot air out in summer and cool air in during winter. Insulation is also a great way to save money by reducing the need for heating and cooling systems to work so hard.

Whether you live in an older home that could benefit from more insulation or are building new, ENERGY STAR offers a number of resources to help you get the job done right. Learn more about the different types of attic insulation, including their core benefits and how they differ from one another.

Loose Fill Insulation

This attic insulation option is made up of bags of loose material, usually cellulose, rock wool or fiberglass, that are blown into place with a special machine. It is an affordable choice and often more effective than fiberglass batts, which are made of fine glass fibers. However, it’s not a good idea for attics with lots of obstructions or penetrations.

Blown-In Insulation

This type of attic insulation is a favorite among both professionals and DIYers. This cellulose, fiberglass or recycled paper product is blown into attic cavities with a special machine. It is highly effective and a great fit for attics with standard joist spacing. However, it doesn’t play well with moisture and can lose its insulating value if it gets wet.

Desert Spray Foaming
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