

Elevates Comfort & Efficiency
Comfort Without Compromise
SANCTUARY® by Greenfiber® cellulose insulation creates a cozier, peaceful and more balanced home by regulating temperature and reducing drafts. This dense, high-performance, eco-friendly insulation delivers safe, nontoxic comfort, supporting the health and well-being of everyone inside. By maintaining consistent temperatures, it eases strain on heating and cooling systems, enhancing comfort and efficiency throughout the home.

Video
Enhance Thermal Resistance
Keep homes warmer in the winter and cooler in the summer, and save homeowners money on energy bills.
-
Lowers Heating and Cooling Costs by up to 25%1
-
Delivers a High R-value per Inch with Built-In Resistance to Air Infiltration
-
Reduces Impact on the HVAC System
Featured Products
Solutions for Any Project

SANCTUARY
An eco-friendly cellulose insulation product that delivers unparalleled sound power reduction, highly effective insulation, temperature regulation and fire safety.

ProCell Green
The larger 25 lb. bag is perfect for contractors, offering an effective solution with its increased coverage area and decreased jobsite time.
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.

Request Tech Info
Looking for technical documents or safety data? Select the product from the list below, and we’ll send you what you need.



