Installs Easily
Simpler Installs. Better Results.
SANCTUARY® by Greenfiber® cellulose insulation ensures hassle-free installation. Unlike roll or batt alternatives that have to be carried into the attic, typically through a small scuttle hole, SANCTUARY is fed into a machine and can be installed over existing insulation or integrated into existing building packages and plans.
How to Install
Flawless Installs
Our video library makes mastering Greenfiber insulation simple. Learn techniques for dense-pack, spray-applied, exterior retrofit and attic installs for faster, cleaner and more precise results.
Insulation Calculator
Build With Confidence
Get an accurate estimate of how much SANCTUARY product you need for your next project.
Documents
Master Every Install
Greenfiber cellulose insulation is the easiest insulation to install, and our library of guides makes it even simpler. Clear instructions and pro tips help you work faster, achieve the best R-value and deliver results you can trust.
Related Article
How to Choose Machinery for Installation
Learn how to match machines to services, adapt existing equipment and add accessories that improve speed, performance and profitability.
Climate zone map
The Right R‑Value Starts Here
Insulation works best when it’s tailored to your climate. Find your zone on our map and discover the recommended Greenfiber cellulose insulation r-value for maximum comfort and energy efficiency.
Contact Us
Need Specs, Support or Solutions?
Our team of insulation experts is ready to help with product info, project advice or anything else you need to get the job done right.
Find a Sales Representative
Our knowledgeable sales representatives are ready to guide you through product details, answer your questions and help you find the best solutions for your project.
Find a Trusted Installer
Find experienced, trusted professionals who know how to install SANCTUARY® cellulose insulation for maximum comfort, performance and peace of mind.