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It may not be the best topic for small talk, but the more you learn about Greenfiber, the smarter you’ll be about how to use it and all of the reasons you should. Check out the documents, step-by-step instructions, videos and more below.

Glossary FAQ How to Install

Some helpful information

How-to & other videos

  • How to Install Insulation in Your Attic

    This video will help you determine your project needs and successfully installing the product.

  • How to Calculate Your Insulation Needs

    R-value is a measure of resistance to heat flow through a given thickness of material.

  • Retrofit Installation for Exterior Walls

    This video will will provide you with a high-level overview of how to insulate the exterior walls of an existing home. Watch the 'Dense-packing a Wall Cavity' video for more information on the process.

  • Dense-Packing a Wall Cavity

    This video will show you how to dense-pack a wall cavity using a 1-hole method with a nozzle.

  • Calibrating the Machine

    This video will show you how to calibrate the machine and reach the desired densities when installing in walls.

  • Machine Overview for Wall Installations

    This video will provide you with an overview on the fundamentals on how to operate an insulation machine.

  • Open Cavity Dense-Pack Wall Installation

    This video will show you how to dense-pack in open wall cavities behind netting.

  • Greenfiber Sound Reduction

    Where air flows, sound follows. Sanctuary is engineered to fill the tiny joints, crevices and gaps hidden within your attic, walls, floors and ceilings.

  • Greenfiber Comfort & Energy Savings

    SANCTUARY insulation is designed to regulate temperature room by room, when installed in exterior walls, and it can also reduce heating and cooling costs by up to 20%.

  • Greenfiber Fire Resistance

    SANCTUARY insulation is designed to regulate temperature room by room, when installed in exterior walls, and it can also reduce heating and cooling costs by up to 20%.

  • Elev8 Builder Testimonial

    Chris Little, President & Owner of Elev8 Builders, shares his views on high performance systems.

Technical documents & brochures

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Useful Tools

  • Project Checklist

    Not sure what else you need for your insulation project?

    Download PDF
  • Insulation Calculator

    Here's an easy way to find out how many bags you'll need to get the job done.

  • Find a Retailer

    Find Greenfiber at
 a retailer near you