SANCTUARY® Blow-In or Spray-Applied Insulation

SANCTUARY® by Greenfiber® is a premium all-in-one cellulose insulation engineered for superior comfort, energy efficiency, sound control and home performance. Ideal for blow-in, dense-pack and spray-applied applications, it conforms around wiring, plumbing and obstructions to fill gaps other insulation leaves exposed, creating a continuous thermal blanket in walls, floors and attics. The dense structure reduces air infiltration and noise transmission while balancing temperatures between levels and supporting code compliance. Made with 85% recycled content, SANCTUARY offers the lowest embodied carbon of any major insulation product. Easy to install and trusted by professionals, it helps builders deliver lasting comfort, performance and sustainability.