FREE Standard Shipping
Free shipping is valid on any order shipped to a single address in the mainland USA. Standard shipping is covered. Overnight or 2-day delivery will cost extra and is not available on custom-made products.
Speak to an Expert: 1.800.679.8511
Free shipping on all USA orders
Free shipping is valid on any order shipped to a single address in the mainland USA. Standard shipping is covered. Overnight or 2-day delivery will cost extra and is not available on custom-made products.
CelluZorbe (24" x 48", 8 sq ft per) panels are budget friendly and environmentally sustainable, made of mostly recycled cellulose fibers. Excellent acoustical performance and thermal insulation. No itch, Class A fire rated, and easy to install.
Bulk discounts available. Save per panel at 14, 28 and 56 panels.CelluZorbe™ Cellulose Acoustic Panels
CelluZorbe is an environment and budget-friendly acoustical panel that doubles as thermal and sound insulation. Made primarily of recycled newspaper, this soundproof insulation is a common alternative to mineral wool insulation and fiberglass insulation. These cheap acoustic panels are a truly flexible solution. They're great as an itch-free core for DIY acoustic panels, and for use as hidden absorption or as value sustainability when solving sound and heat problems!
| Dimensions | 24" x 48" (custom sizes up to 48" x 96") | 
| Thickness | 
 1", 2"  | 
| Weight | 2 lbs (1"), 4 lbs (2") | 
| Density | 3# (6# available via phone) | 
| Color | Natural | 
| Temperature Rated | Up to 280°F | 
| Thermal Resistance (R-value) | 3.7 per inch | 
| Cuttable | Yes, in the field or in our shop | 
| Itch & Irritation | None | 
| Recommended Adhesive | P329 Spray Adhesive | 
| Spec Sheet | CelluZorbe™ Product Sheet | 
| Architect CSI Specs | 
  CelluZorbe™ Wall Panel CSI Spec   | 
| Install Guide | 
  CelluZorbe™ Install Guide (P329 Spray Adhesive)   | 
Material Testing
Noise Reduction Coefficient
| Frequency (Hz) | 125 | 250 | 500 | 1000 | 2000 | 4000 | NRC | 
| 1" CelluZorbe™ Cellulose Panel | 0.09 | 0.26 | 0.84 | 1.05 | 1.05 | 1.05 | 0.80 | 
| 2" CelluZorbe™ Cellulose Panel | 0.39 | 0.63 | 1.18 | 1.11 | 1.06 | 1.09 | 1.00 | 
| 
 Tested Properties  | Testing Method | Performance | 
|---|---|---|
| Fire Rating | ASTM E84, UL 723 | 
 Class A  | 
| Thermal Resistance | ASTM C518 | 
 R-value: 3.7 per inch  | 
| Corrosion Resistance | ASTM C739 | 
 Pass  | 
| Fungal Resistance | ASTM C1338 | 
 Pass  | 
| Moisture Absorption | ASTM C739 | Pass | 
| Odor Emissions | ASTM C1304 | Pass | 
| VOC Emissions | CDPH v1.2 | Pass | 
| LEED Credits | EQ Credit v4.1 | Eligible | 
Recommended Adhesive: P329 Spray Adhesive
If buying adhesive locally, we recommend a combination of construction adhesive (Loctite Power Grab or equivalent) and spray adhesive (3M Super 77 or equivalent). See our CelluZorbe™ Install Guide (Construction Adhesive) for instructions.