Cellulose Insulation and Fibreglass

There are two insulation materials that are most commonly used in the field: fiberglass and cellulose. These two powerhouses have been stars in improving energy efficiency over the years, saving us money and keeping us cool in the summer and warm in the winter. For a long time, fiberglass insulation was the most common to find in a home, but as of late, we’ve seen the rise of cellulose insulation thanks to its versatility.

Depending on their location and building code requirements, cellulose and fiberglass insulation can immensely benefit builders, remodelers, and homeowners. Nobody understands how important an informed decision on home insulation is better than Florida Air Express, and we’re dedicated to assisting you in making the right choice for your home.

Today, we’re going to make good on that offer by showing you an in-depth comparison between both fiberglass and cellulose insulation in this quick and easy article.

Recycled Products

Your insulation choice shouldn’t just be a perfect fit for your home and your wallet, but the environment as well! That’s one of the big benefits of cellulose insulation: it’s a green product, thanks to being made up of recycled materials like newspaper and other biodegradable papers!

But fear not, our fire-conscious worrywarts, this doesn’t make cellulose insulation hazardous; it’s totally fire-resistant because of the ammonium sulfate and boric acid it’s been coated in. These chemicals not only keep your family safe, but protect against molds, insects, and rodents.

If you’re on the fence, keep in mind that cellulose is more of an environmentally friendly option than fiberglass, due to the smaller amounts of energy used during the manufacturing process.


When it comes to building materials, expect your prices to fluctuate. Insulation is no different, the cost will go up or down for both kinds respectively, which makes it pretty hard to tell which is the more cost-effective option.

You might be wondering why, but it mostly has to do with the market situation and the supplier’s demand, as well as the contractors themselves adjusting the price. Aside from other costs such as service installations, branding fees will also tack on a higher price to the cost of insulation material.

So, although insulation materials vary in price, the range of prices won’t typically stay the same. Therefore we suggest that you choose a material based on other factors such as longevity and efficiency rather than cost alone.


Where safety is concerned, cellulose wins out again. Studies have shown that cellulose’s mold resistance, health-friendliness, and its fireproof nature make it a huge benefit compared to what regular fiberglass insulation can tout. While fiberglass can resist flames as well, its fibers are much thinner in comparison to the tight packing foam insulation will give you, clogging your wall cavities and ensuring that any fires that start will stay where they are.

Because of this nature cellulose insulation has to fill any gaps, it can also increase energy efficiency in your home and promote soundproofing too!

Comparison of R-value

What is an R-value? It lets you know how likely this specific type is to prevent unwanted heat flow into your house. A higher value will tell you that your chosen is better for insulation and will stop any summer heat from entering your home.

This might not surprise you, but this is another category cellulose wins out in. As mentioned previously, spray foam will fill all the crevices you’ve got and keep out the sound and heat, but without the need for other preventative measures, such as caulk and other sealants to function properly. In fact, this packed insulation will even keep you warm in the winter through its ability to block out cool breezes.

Let Us Help You

Call Florida Air Express for a detailed inspection of your home to help you figure out which installation fits your needs. We’ve got years in the business and are happy to lend our experience and skills to help make your house a home.

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