If you’re going to do this,

Do it right.

Greenfiber insulation outperforms other types of insulation in one critical way after another. Plus, it offers advantages you’ve probably never even thought about. And it doesn’t itch.

  • Imagine what you could buy.
    Save up to 22% on your energy bill.¹

    Save up to 22% on your energy bill.¹

    Greenfiber keeps your home cooler in the summer² and warmer in the winter³. Our cellulose insulation is so effective, it can cut your energy bill significantly. And we think you can come up with better ways to spend your money than blowing it out into the air.

    Save up to 22% on your energy bill.¹
  • Love the sound of silence?
    Absorbs 90% of sounds.⁴

    Absorbs 90% of sounds.⁴

    Where air flows, sound follows. But because Greenfiber is so much denser than fiberglass and blown in to fill every space, it provides “superior noise transfer reduction” through floors and walls, which is a technical way of saying it does a great job of blocking sound — including the garage band next door.

    Absorbs 90% of sounds.⁴
  • Want a little peace of mind?
    57% better at resisting fire.⁵

    57% better at resisting fire.⁵

    When every second counts, Greenfiber can give you more time to escape. With a Class 1 fire rating, Greenfiber is 57% better at resisting fire than other types of insulation. Other forms of insulation don't contain active fire-resistant materials. In addition, its density, which is two to three times greater than fiberglass, gives it more fire-blocking capability. In a large-scale fire test, Greenfiber lasted 68 minutes — 60% longer than fiberglass⁵ — making Greenfiber the best choice to protect the people you love.

    57% better at resisting fire.⁵
  • Don’t want to break a sweat?
    It’s easy to install Greenfiber.

    It’s easy to install Greenfiber.

    Because our insulation is blown in, it’s much easier to install than dealing with rolls you have to lift up through an attic access hole and then cut and fit into place. Plus, ours can be blown over existing insulation. The blower machine can often be rented from the place where you purchased your Greenfiber.

    It’s easy to install Greenfiber.
  • Care about the planet?
    We’re better for you and the environment.

    We’re better for you and the environment.

    We use 85% recycled material that’s free from unhealthy substances like formaldehyde and asbestos. In addition, we use just one-fifth the energy to manufacture Greenfiber as that used to make competing insulation products.⁶

    We’re better for you and the environment.

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¹ Based on a University of Colorado study (1990) comparing cellulose and fiberglass batt insulation in identical structures during the winter season. Savings vary. Find out why in your retailer’s fact sheet on R-values. Higher R-values mean greater insulating power.

² According to Brookhaven National Laboratory
³ According to Oak Ridge National Laboratory
⁴ Based on STC ratings on complete assemblies using staggered drywall construction with Greenfiber Wall Spray Cellulose Insulation. Architectural Testing, Inc., Report No. A2954.01-113-11

⁵As demonstrated by The Large Scale Outdoor Fire Test Program - Prepared by Steven Winter Associates Inc.
⁶ Comparison based on an R-30 value at one square foot coverage area. This comparison includes the production and energy used in the insulation manufacturing process. Based on Sustainability Impact Index - Prepared by Principal Partners.