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


Greenfiber® cellulose insulation helps create quieter, more comfortable homes by reducing sound transmission and preventing air movement between floors. Easy to install and environmentally conscious, it adds thermal protection where it’s often overlooked, helping you save energy and improve indoor comfort from the ground up.
Access all the technical details, building code support and installation know-how you need to insulate with confidence — and meet today’s building standards with ease.


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.

