Sanctuary® Blow-In or
Spray-Applied Insulation

Used as attic insulation and installed in walls, floors and ceilings, Sanctuary will significantly improve the comfort, safety and well-being provided by any home. The first all-in-one fiber insulation that can be blown-in or spray-applied, it’s suitable for all climates and conditions. Capable of reducing sound power by 60%¹ and heating and cooling costs by 25%², it’s easily installed, environmentally responsible, and packaged to optimize coverage and ease of installation.

  • Bag Size: 25 lbs.
  • R-Value: R19 to R60
  • Coverage: 48.8 sq. ft. per bag at R19
Image of <p>Sanctuary<sup>® </sup>Blow-In or <br />Spray-Applied Insulation</p>


in Sound


on Heating
& Cooling



Product Features

Sanctuary is engineered to fill tiny crevices and gaps, creating a dense, scientifically advanced barrier capable of reducing the power of sound by up to 60%¹. As cellulose insulation that can be blown-in or spray-applied, Sanctuary can be easily installed over existing insulation, and unlike batt or roll alternatives, it is engineered to fill every gap, void and hard-to-reach place without time-consuming cutting and fitting. Installed in attics, walls, ceilings and floors, Sanctuary keeps homes cooler in the summer and warmer in the winter, reducing heating and cooling costs by up to 25%2. Sanctuary has a Class 1/A fire rating, qualifies as a fire-blocking material and has been proven to be 57% better at resisting fire than most other common type of residential insulation3.

  • 60% reduction in sound power¹
  • 25% reduction in heating and cooling costs²
  • 85% recycled material
  • Coverage Area (Sq. Ft.): 48.8 at R-19
  • Package Weight (lbs.): 25
  • Energy Star certified
  • Formaldehyde free
  • Limited lifetime warranty
  • R-Value per Inch: 3.7
  • Insulation Type: Cellulose
  • Fits any wall configuration
  • For use in attics
  • For use in ceilings
  • For use in crawlspaces
  • For use in floors

Technical Documents

  • SANCTUARY Home Brochure 3.59 MB | PDF Download
  • SANCTUARY Fact Sheet 661.5 KB | PDF Download
  • SANCTUARY Attic Card 643.29 KB | PDF Download
  • SDS - SANCTUARY Stabilized Borate Formula 261.74 KB | PDF Download
  • Contractor Retrofitting Sidewall Installation Guide 4.64 MB | PDF Download
  • Attic Floor Installation Instructions for Contractors 550.12 KB | PDF Download
  • SANCTUARY Advantages In New Home Construction 406.89 KB | PDF Download
  • Dry Dense-Packing Wall & Floor Assembly Guide 1.09 MB | PDF Download
  • Wall Spray Manual for SANCTUARY Insulation 6.62 MB | PDF Download