Which is Better – Fiberglass or Cellulose Insulation?

Blown Cellulose Insulation

There is a difference between Fiberglass and Cellulose Insulation

A well insulated home will have lower utility bills by preventing the heat or cold from escaping the structure.  Eash has its benefits – fiberglass is easier to install yet is less energy efficient.  Blown in cellulose insulation fills cracks and crevices making it more energy efficient.



Natural insulating powers Traps air in glass fibers
Prevents air leakage 30% air leakage
Energy efficient Less energy efficient

For many decades, “the pink stuff” has been the iconic image of residential insulation. Trademarked in 1938, fiberglass insulation has been the standard in insulation, providing relatively high thermal resistance as well as fire resistance at affordable prices.

The high costs of fiberglass insulation

However, there are hazards that go along with the use of fiberglass insulation. Small fiberglass particles cause irritation and rashes when they come in contact with the skin, and when inhaled, they can lead to respiratory problems and nosebleeds. OSHA requires fiberglass insulation to come with a cancer warning label as fine airborne particles can become lodged deep in lung tissues, possibly contributing to lung cancer.

Cellulose insulation provides safe, natural, affordable efficiency

Blown-in cellulose insulation provides a safer, affordable alternative to fiberglass insulation. Cellulose consists of plant-based materials, and it has been used in one form or another throughout history. Historically, materials such as sawdust, cotton, and newspapers have been used to provide residential insulation, and modern cellulose is carrying on that tradition.

Today’s cellulose insulation consists of recycled newspaper, which makes it an environmentally friendly alternative to fiberglass. The cellulose fibers are chemically treated to add fire resistance, mold and mildew resistance, and even resistance to pests, and the chemicals used are considered safe for human contact.

Like other, more expensive options, cellulose insulation provides air sealing that reduces energy loss. By preventing conditioned air from escaping and external air from penetrating a home’s envelope, your home’s energy efficiency is improved, thereby reducing your monthly utility costs.

Get more information on cellulose insulation from our energy experts

If you’re currently weighing your insulation options, get in touch with the energy experts at Sunlight Contractors, LLC. We pride ourselves on our knowledge of the benefits and hazards of each type of insulation on the market. Call today and we can help you choose the insulation that fits your needs and your budget.


No other energy solutions provider can offer the savings and services that Sunlight Contractor does. From evaluations and estimates to energy conservation and production, we’re your one stop shop for energy efficiency. Call or email Sunlight Contractors today to learn more about energy solutions that will save your business money while conserving energy.


Main Office: Sunlight Contractors, LLC 2323 Bainbridge St #110, Kenner, LA 70062 (504) 919-9993

New Orleans location: Sunlight Contractors, LLC 650 Poydras St, Suite 1400, Rm 33, New Orleans, LA 70130 (504) 302-0058

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We provide service to the following areas: New Orleans, Baton Rouge, Metairie, Slidell, Kenner, and surrounding areas including Marrero, Harvey, Mandeville, LaPlace, Covington, Gretna, Destrehan, Lacombe, Saint Rose, Madisonville, Norco, and more.

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