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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.

  • Elev8 Builder Testimonial

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

Technical documents & brochures

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  • SDS - Fire Rated Material (FRM100)
     
    Safety Data Sheets
    219.65 KB | PDF
  • SDS - SANCTUARY Stabilized Borate Formula
     
    Safety Data Sheets
    261.74 KB | PDF
  • SANCTUARY DEFENSE - MSDS
     
    Safety Data Sheets
    3.03 MB | PDF
  • SDS - Applegate Stabilized Cellulose Insulation
     
    Safety Data Sheets
    977.64 KB | PDF
  • Supreme Plus SDS
     
    Safety Data Sheets
    232.11 KB | PDF
  • Setting the Record Straight - Facts About Low-Embodied Carbon
     
    Safety & Performance Documents
    264.24 KB | PDF
  • SANCTUARY Two-Hour Firewall UL Listing
     
    Safety & Performance Documents
    1.7 MB | PDF
  • Impact of Cellulose Insulation on the Carbon Footprint of Building Assemblies White Paper
     
    Safety & Performance Documents
    588.21 KB | PDF
  • The Carbon Story Of Cellulose Insulation_CIMA Bulletin
     
    Safety & Performance Documents
    1.5 MB | PDF
  • Machine Conversion Sheet
     
    Safety & Performance Documents
    206.42 KB | PDF
  • Consumer Bulletin 13 American Lung Association & Greenfiber
     
    Safety & Performance Documents
    1001.58 KB | PDF
  • Vapor Barrier Bulletin
     
    Safety & Performance Documents
    120.83 KB | PDF
  • LEED for Homes Contribution Chart
     
    Safety & Performance Documents
    146.51 KB | PDF
  • SANCTUARY 2-Hour Firewall Townhome Advantages Sell Sheet
     
    Product Brochures
    9.94 MB | PDF
  • SANCTUARY Two-Hour Firewall Specification Sheet
     
    Product Brochures
    1.82 MB | PDF
  • Agritherm Sell Sheet
     
    Product Brochures
    2.31 MB | PDF
  • Agritherm Brochure
     
    Product Brochures
    5.75 MB | PDF
  • SANCTUARY DEFENSE - Home Protection Quick Facts
     
    Product Brochures
    1.85 MB | PDF
  • SANCTUARY DEFENSE - Product Brochure
     
    Product Brochures
    1.24 MB | PDF
  • Retrofit Brochure
     
    Product Brochures
    2.87 MB | PDF
  • Greenfiber Sound Wall Assemblies Catalog
     
    Product Brochures
    8.08 MB | PDF
  • Carbon Emissions Reduction Brochure
     
    Product Brochures
    2.99 MB | PDF
  • SANCTUARY Advantages In New Home Construction
     
    Product Brochures
    406.89 KB | PDF
  • SANCTUARY Home Brochure
     
    Product Brochures
    3.59 MB | PDF
  • Cathederal Ceiling Application Guide
     
    Installation Guides
    1.47 MB | PDF
  • SANCTUARY DEFENSE - Wall-Spray Installation Guide
     
    Installation Guides
    936.44 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
  • Wall Spray Manual for Applegate Stabilized Cellulose
     
    Installation Guides
    935.78 KB | PDF
  • Attic Floor Installation Instructions for Applegate Stabilized Cellulose for Contractors
     
    Installation Guides
    463.09 KB | PDF
  • Dry Dense-Packing Wall & Floor Assembly Guide
     
    Installation Guides
    1.09 MB | PDF
  • Wall Spray Manual for SANCTUARY Insulation
     
    Installation Guides
    930.93 KB | PDF
  • Cathedralized Unvented Attic Application Guide
     
    Installation Guides
    869.36 KB | PDF
  • Attic Floor Installation Instructions for Contractors
     
    Installation Guides
    5.41 MB | PDF
  • Standard Practices for Installing Cellulose Building Insulation _ CIMA Bulletin
     
    Installation Guides
    59.76 KB | PDF
  • Contractor Retrofitting Sidewall Installation Guide
     
    Installation Guides
    284.93 KB | PDF
  • DIY Attic Installation Guide
     
    Installation Guides
    1.72 MB | PDF
  • SANCTUARY 2-Hour Firewall Installation Guide - Spanish
     
    Installation Guides
    785.18 KB | PDF
  • SANCTUARY 2-Hour Firewall Installation Guide
     
    Installation Guides
    816.48 KB | PDF
  • FRM Fact Sheet
     
    Fact Sheets
    97.13 KB | PDF
  • Supreme Plus Fact Sheet
     
    Fact Sheets
    811.93 KB | PDF
  • SANCTUARY Fact Sheet
     
    Fact Sheets
    661.5 KB | PDF
  • INS200 Agritherm Fact Sheet
     
    Fact Sheets
    1.48 MB | PDF
  • Applegate Stabilized Cellulose Insulation Fact Sheet
     
    Coverage Charts
    562.89 KB | PDF
  • SANCTUARY DEFENSE - Attic Card
     
    Coverage Charts
    684.64 KB | PDF
  • SANCTUARY Attic Card
     
    Coverage Charts
    635.46 KB | PDF
  • Greenfiber FRM Coverage Chart
     
    Coverage Charts
    235.94 KB | PDF
  • Two-Hour Firewall Field Test Form
     
    Certificates & Forms
    510.57 KB | PDF
  • Greenfiber Submittal Form
     
    Certificates & Forms
    386.41 KB | PDF
  • Greenfiber Limited Lifetime Warranty
     
    Certificates & Forms
    860.57 KB | PDF
  • SANCTUARY DEFENSE Declare Label
     
    Certificates & Forms
    618.1 KB | JPG
  • Two-Hour Firewall Checklist
     
    Certificates & Forms
    474.76 KB | PDF
  • SANCTUARY Declare Label
     
    Certificates & Forms
    716.09 KB | JPG
  • UL Evaluation Report
     
    Certificates & Forms
    796.77 KB | PDF
  • Terms and Conditions of Sale
     
    Certificates & Forms
    155.64 KB | PDF
  • Build America, Buy America Act Certification
     
    Certificates & Forms
    130.59 KB | PDF
  • Greenfiber FRM Two-Hour Firewall Limited Lifetime Warranty
     
    Certificates & Forms
    428.87 KB | PDF
  • Seal and Insulate with ENERGY STAR® Insulation Product Certification Report
     
    Certificates & Forms
    4.4 MB | PDF
  • CSI 3 Part Specification
     
    Certificates & Forms
    215.59 KB | PDF
  • Commercial Credit Application
     
    Certificates & Forms
    290.11 KB | PDF
  • 2025 Manufacturer's Certificate for Non-Business Energy Property Tax Credits and Energy Efficiency Tax Credit 25C
     
    Certificates & Forms
    195.58 KB | PDF
  • Blowing Machine Prep
     
    581.32 KB | PDF
  • Project Checklist
     
    199.37 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

  • Saves Energy

    Use this energy savings calculator to measure the financial impact of increasing your insulation performance

    Calculate