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.
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™ HD Backer Board is a budget-friendly panel rated for both STC and NRC. This recycled material is environmentally conscious and perfect for applications needing both soundproofing and sound absorption.
Bulk discounts available. Save per panel at 14 and 28 panels.CelluZorbe™ HD Soundproofing Backer
CelluZorbe™ HD Soundproofing Backer is the most cost-effective and eco-friendly way to supercharge an existing barrier by adding both STC and NRC. Use the backer board with drywall to increase sound blocking and absorption or combine with plywood to build a silencer box.
Features
Specs
Dimensions |
24" x 48" (Up to 4' x 8') |
Thickness | Nominal 1/2" |
Weight | 4.25 lbs |
R-Value | 3.8 per inch |
Color | Natural |
Cuttable | Yes, in the field or in our shop |
Itch & Irritation | None |
Resources
Spec Sheet | CelluZorbe™ HD Soundproofing Backer Product Sheet |
Install Guide | CelluZorbe™ HD Soundproofing Backer Install Guide |
Material Testing
Sound Transmission Class (STC)
Frequency (Hz) | 125 | 250 | 500 | 1000 | 2000 | 4000 | STC |
1/2" Celluzorbe™ HD Soundproofing Backer | 12 | 14 | 13 | 14 | 17 | 21 | 15 |
Noise Reduction Coefficient (NRC)
Frequency (Hz) | 125 | 250 | 500 | 1000 | 2000 | 4000 | NRC |
1/2" Celluzorbe™ HD Soundproofing Backer | 0.05 | 0.09 | 0.33 | 0.64 | 0.87 | 1.01 | 0.50 |
Tested Properties | Testing Method | Performance |
Fire Rating | ASTM E84 | Class A |
Thermal Resistance | ASTM C518 | R-Value: 3.8 per inch |
Corrosion Resistance | ASTM C739 | Pass |
Fungal Resistance | ASTM C1338 | Pass |
Moisture Absorption | ASTM C739 | Pass |
Low VOC | ASTM V1.2 | Pass |
Installation Instructions
Wall Installation
Recommended Install Method: drywall screws or nails
Install Locations: walls (behind drywall), soundproof boxes, generator boxes, pool pump box, generator enclosure or generator shed, mechanical rooms, machinery enclosures, office partition walls, window noise reduction
Steps to Soundproof a Wall with CelluZorbe HD
Common Product Uses
Contact us if you have any questions!