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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

  • Hear the Sound of Silence in this SANCTUARY Home by Greenfiber

    Experience the sound of silence in this SANCTUARY Home in Scottsdale, AZ. This home with SANCTUARY by Greenfiber spray-applied to exterior and interior walls brings life back into balance by reducing unwanted noise and maximizing comfort.

  • How to Install Insulation in Your Attic

    We know. Insulating your attic probably comes somewhere below cleaning gutters or washing windows on the list of things you’d like to do. But the good news is, it’s a lot easier than you think when you use Greenfiber blow-in cellulose. This video will provide you with helpful tips on what you will need to get started and then walk you through the steps on how to insulate your attic.

  • How to Calculate Your Insulation Needs

    R-value is a measure of resistance to heat flow through a given thickness of material. While R-Value is one way of comparing insulations — the higher the R-Value, the better the insulation performance, it is just one of the factors that determine how an insulation product will perform in the real world. Understanding the R-value that you want to reach is an important step in determining how to properly insulate your home. It will also determine the number of bags that you will need for your project.

  • 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

    With a Class1A fire rating, SANCTUARY insulation contains active fire-resistance materials to slow the spreading of flames and give you more time to evacuate in the case of a fire.

  • SANCTUARY Two-Hour Firewall Assembly Installation Process – Steps 1 and 2

    Ideal for townhome and multi-family construction, our Greenfiber FRM Insulation when used in combination with our proprietary U370 firewall design offers unparalleled fire resistance, along with exceptional sound control and reduced air-infiltration. Walk through the first two steps of installing the SANCTUARY Two-Hour Firewall assembly in this video.

Technical documents & brochures

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  • SDS - SANCTUARY Stabilized Borate Formula
     
    Safety Data Sheets
    261.74 KB | PDF
  • SDS - Applegate Stabilized Cellulose Insulation
     
    Safety Data Sheets
    977.64 KB | PDF
  • SDS - Fire Rated Material (FRM100)
     
    Safety Data Sheets
    219.65 KB | PDF
  • Supreme Plus SDS
     
    Safety Data Sheets
    232.11 KB | PDF
  • SANCTUARY DEFENSE - MSDS
     
    Safety Data Sheets
    3.03 MB | PDF
  • Impact of Cellulose Insulation on the Carbon Footprint of Building Assemblies White Paper
     
    Safety & Performance Documents
    588.21 KB | PDF
  • Consumer Bulletin 13 American Lung Association & Greenfiber
     
    Safety & Performance Documents
    1001.58 KB | PDF
  • The Carbon Story Of Cellulose Insulation_CIMA Bulletin
     
    Safety & Performance Documents
    1.5 MB | PDF
  • Machine Conversion Sheet
     
    Safety & Performance Documents
    306.99 KB | PDF
  • Vapor Barrier Bulletin
     
    Safety & Performance Documents
    120.83 KB | PDF
  • LEED for Homes Contribution Chart
     
    Safety & Performance Documents
    146.51 KB | PDF
  • Home Innovation NGBS Green Certification
     
    Safety & Performance Documents
    752.72 KB | PDF
  • SANCTUARY Two-Hour Firewall UL Listing
     
    Safety & Performance Documents
    1.7 MB | PDF
  • Setting the Record Straight - Facts About Low-Embodied Carbon
     
    Safety & Performance Documents
    264.24 KB | PDF
  • Air Infiltration White Paper
     
    Safety & Performance Documents
    448.85 KB | PDF
  • SANCTUARY Advantages In New Home Construction
     
    Product Brochures
    406.89 KB | PDF
  • Retrofit Brochure
     
    Product Brochures
    2.87 MB | PDF
  • SANCTUARY 2-Hour Firewall Townhome Advantages Sell Sheet
     
    Product Brochures
    9.94 MB | PDF
  • SANCTUARY DEFENSE - Product Brochure
     
    Product Brochures
    1.24 MB | PDF
  • SANCTUARY Two-Hour Firewall Specification Sheet
     
    Product Brochures
    1.82 MB | PDF
  • Greenfiber Sound Wall Assemblies Catalog
     
    Product Brochures
    8.08 MB | PDF
  • SANCTUARY DEFENSE - Home Protection Quick Facts
     
    Product Brochures
    1.85 MB | PDF
  • SANCTUARY Home Brochure
     
    Product Brochures
    3.59 MB | PDF
  • Agritherm Brochure
     
    Product Brochures
    5.75 MB | PDF
  • Carbon Emissions Reduction Brochure
     
    Product Brochures
    2.99 MB | PDF
  • Agritherm Sell Sheet
     
    Product Brochures
    2.31 MB | PDF
  • SANCTUARY DEFENSE - Wall-Spray Installation Guide
     
    Installation Guides
    863.49 KB | PDF
  • Standard Practices for Installing Cellulose Building Insulation _ CIMA Bulletin
     
    Installation Guides
    59.76 KB | PDF
  • Attic Floor Installation Instructions for Applegate Stabilized Cellulose for Contractors
     
    Installation Guides
    463.09 KB | PDF
  • Wall Spray Manual for Applegate Stabilized Cellulose
     
    Installation Guides
    935.78 KB | PDF
  • SANCTUARY DEFENSE - Attic Floor Installation Guide
     
    Installation Guides
    444.56 KB | PDF
  • SANCTUARY DEFENSE - Dry Dense-Packing Wall & Floor Assembly Guide
     
    Installation Guides
    435.96 KB | PDF
  • Contractor Retrofitting Sidewall Installation Guide
     
    Installation Guides
    284.93 KB | PDF
  • SANCTUARY 2-Hour Firewall Installation Guide - Spanish
     
    Installation Guides
    785.18 KB | PDF
  • Dry Dense-Packing Wall & Floor Assembly Guide
     
    Installation Guides
    1.09 MB | PDF
  • Wall Spray Manual for SANCTUARY Insulation
     
    Installation Guides
    859.71 KB | PDF
  • DIY Attic Installation Guide
     
    Installation Guides
    1.72 MB | PDF
  • SANCTUARY 2-Hour Firewall Installation Guide
     
    Installation Guides
    816.48 KB | PDF
  • Cathedralized Unvented Attic Application Guide
     
    Installation Guides
    869.36 KB | PDF
  • Cathederal Ceiling Application Guide
     
    Installation Guides
    1.47 MB | PDF
  • Attic Floor Installation Instructions for Contractors
     
    Installation Guides
    5.41 MB | PDF
  • FRM Fact Sheet
     
    Fact Sheets
    289.11 KB | PDF
  • SANCTUARY Fact Sheet
     
    Fact Sheets
    772.87 KB | PDF
  • INS200 Agritherm Fact Sheet
     
    Fact Sheets
    1.58 MB | PDF
  • Supreme Plus Fact Sheet
     
    Fact Sheets
    811.93 KB | PDF
  • SANCTUARY Attic Card
     
    Coverage Charts
    762.05 KB | PDF
  • Greenfiber FRM Coverage Chart
     
    Coverage Charts
    235.94 KB | PDF
  • SANCTUARY DEFENSE - Attic Card
     
    Coverage Charts
    807.93 KB | PDF
  • Applegate Stabilized Cellulose Insulation Fact Sheet
     
    Coverage Charts
    562.89 KB | PDF
  • Build America, Buy America Act Certification
     
    Certificates & Forms
    130.59 KB | PDF
  • Greenfiber Limited Lifetime Warranty
     
    Certificates & Forms
    860.57 KB | PDF
  • Greenfiber FRM Two-Hour Firewall Limited Lifetime Warranty
     
    Certificates & Forms
    428.87 KB | PDF
  • SANCTUARY DEFENSE Declare Label
     
    Certificates & Forms
    618.1 KB | JPG
  • Greenfiber Submittal Form
     
    Certificates & Forms
    386.41 KB | PDF
  • UL Evaluation Report
     
    Certificates & Forms
    724.04 KB | PDF
  • SANCTUARY Declare Label
     
    Certificates & Forms
    716.09 KB | JPG
  • Seal and Insulate with ENERGY STAR® Insulation Product Certification Report
     
    Certificates & Forms
    4.4 MB | PDF
  • 2025 Manufacturer's Certificate for Non-Business Energy Property Tax Credits and Energy Efficiency Tax Credit 25C
     
    Certificates & Forms
    195.58 KB | PDF
  • CSI 3-Part Specification – SANCTUARY by Greenfiber
     
    Certificates & Forms
    215.59 KB | PDF
  • Two-Hour Firewall Checklist
     
    Certificates & Forms
    474.76 KB | PDF
  • Commercial Credit Application
     
    Certificates & Forms
    403.59 KB | PDF
  • Terms and Conditions of Sale
     
    Certificates & Forms
    155.64 KB | PDF
  • Two-Hour Firewall Field Test Form
     
    Certificates & Forms
    510.57 KB | PDF
  • CSI 3-Part Specification - Greenfiber® FIRE RATED MATERIAL (FRM100) for U370 Assembly
     
    Certificates & Forms
    181.25 KB | PDF
  • Blowing Machine Prep
     
    581.32 KB | PDF

Useful Tools

  • 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

  • Energy Savings Calculator

    Measure the financial impact of increasing insulation performance with Greenfiber.

    Calculate Savings