What Is Blown-in Insulation?

What Is Blown-in Insulation?

Did you know that the biggest energy losses in your home come from poorly insulated attics and walls? If you want to improve your home’s energy efficiency, upgrading your insulation can make all the difference. New blown-in fiberglass insulation from Energy Saving Pros will help you lower your heating and cooling bills and stop wasting energy.

What Is Blown-in Insulation?

Named for its installation process, blown-in insulation is composed of fine particles that are literally blown into the spaces between the studs in your walls and attic. Although it can be made from a wide variety of materials, blown-in insulation is usually made of either cellulose or fiberglass aggregate.

Advantages of Blown-in Insulation

  • Better for retrofitting or re-insulation
  • Great for attics and wall cavities
  • Can fill irregularly shaped areas and spaces with obstructions
  • Generally less expensive than rolled insulation

Fiberglass vs. Cellulose Blown-in Insulation


This type of insulation uses very few synthetic materials or chemicals, and it’s made from environmentally-friendly recycled materials like cardboard and newspaper. It has a thermal resistance, or R-value, of about 3.2 to 3.8 per inch. Although it’s treated with boric acid to resist both fire and mold, it can still suffer damage from water, rot, and mold, or smolder when exposed to high temperatures.


Made out of the same type of material as rolled fiberglass batt insulation, blown-in fiberglass insulation is more efficient and much easier to install. It typically contains 20% to 30% recycled glass materials, making it an economical and environmentally-friendly choice. It has an R-value of 2.2 to 2.7 per inch, and naturally resists both fire and moisture. Plus, it never deteriorates, so it will last a lifetime.

Blown-in Insulation in Sacramento

Energy Saving Pros offers whole-home solutions for energy savings, including blown-in insulation and re-insulation services. We are committed to helping home and business owners in the Sacramento, Rocklin, Roseville, and East Bay areas save big on their energy bills. Ready to find out how you can reduce energy waste and lower your utility bills with air-sealing and new insulation? Call 916-259-2501 to get a free quote today!


Photo by Sema Martin on Unsplash used under Creative Commons license for commercial use 5/25/2021.