Cellulose Insulation: The Eco-Friendly Choice for Energy Efficiency

Cellulose insulation is an environmentally friendly, cost-effective insulation option that offers excellent thermal and soundproofing properties. Whether you're looking to insulate your attic, walls, or crawl space, cellulose insulation provides a sustainable alternative to traditional materials like fiberglass insulation and spray foam insulation.



In this guide, we’ll explore its benefits, comparisons with other insulation types, installation methods, and whether it’s the right choice for your home.

What is Cellulose Insulation?

Cellulose insulation is primarily made from recycled paper products, such as newsprint, treated with borates to enhance fire resistance and prevent pests. It’s available in two main forms:


  1. Blown-In Cellulose Insulation – Loose-fill insulation that is blown into attics and wall cavities.
  2. Dense-Pack Cellulose Insulation – A denser application used for walls, ceilings, and enclosed spaces.


Because of its high recycled content and minimal manufacturing emissions, cellulose insulation is often considered the most eco-friendly insulation material.

How Does Cellulose Insulation Compare to Other Types?

Insulation Type R-Value per Inch Cost Fire Resistance Soundproofing Longevity
Cellulose Insulation 3.2 – 3.8 Low Good (borate-treated) Excellent 20–30 years
Fiberglass Insulation 2.9 – 3.8 Low Moderate Moderate 10–15 years
Spray Foam Insulation (Closed-Cell) 6.0 – 7.0 High Excellent Moderate 20+ years
Rockwool Insulation 4.0 – 4.3 Moderate Excellent Excellent 20+ years

Verdict: Cellulose insulation is ideal for homeowners seeking an affordable, eco-friendly, and high-performance insulation option.

Key Benefits of Cellulose Insulation

1. Energy Efficiency

With an R-value similar to fiberglass insulation, cellulose insulation effectively reduces heat transfer, lowering your heating and cooling costs.

2. Eco-Friendly & Sustainable

Made from 85% recycled materials, cellulose insulation is one of the most environmentally friendly insulation choices available.

3. Excellent Soundproofing

Because of its dense composition, cellulose insulation outperforms fiberglass insulation in reducing noise between walls and floors.

4. Fire & Pest Resistance

Borate treatment makes cellulose insulation resistant to fire, mold, and pests, providing added safety and durability.

5. Versatile & Effective

It can be installed in attics, walls, and crawl spaces, making it a flexible choice for both new and existing homes.

Installation Methods for Cellulose Insulation

Depending on where it’s installed, cellulose insulation can be applied in different ways:

Blown-In Cellulose Insulation Installation

  1. Prepare the Area – Ensure the attic or wall cavities are clean and dry.
  2. Use an Insulation Blower – A machine distributes the blown-in cellulose insulation evenly.
  3. Check for Proper Coverage – Ensure the insulation reaches the required depth for the desired R-value.

Dense-Pack Cellulose Insulation Installation

  1. Drill Small Holes – Holes are made in walls to insert insulation.
  2. Fill with Dense Cellulose – High-pressure application ensures no gaps or air pockets.
  3. Seal & Finish – The holes are patched and finished.

Cost of Cellulose Insulation

Area of Home Estimated Cost per Sq. Ft.
Attic $0.60 – $2.00
Walls $0.80 – $2.50
Crawl Space $0.75 – $2.00

Pro Tip: Check with your local energy provider for insulation rebates to reduce upfront costs.

Is Cellulose Insulation Right for You?

✔️ Best for:  Homeowners looking for an eco-friendly, fire-resistant, and cost-effective insulation solution.

Not ideal for:  Areas prone to excessive moisture, as cellulose insulation absorbs water more easily than spray foam insulation.

Get Expert Cellulose Insulation Installation in Arvada!

At Arvada Insulation Contractors, we provide professional cellulose insulation installation for homes and businesses. Our team ensures your insulation is applied effectively for maximum energy efficiency and comfort.


Call (720) 709-1680 now or fill out our online form for a FREE consultation today!

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