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.
EcoVerb™ Roll Acoustic Duct Liner
EcoVerb™ Roll Acoustic Duct Liner is designed to reduce noise inside HVAC systems by absorbing sound from airflow and room-to-room noise through ductwork. This duct liner is made from recycled cotton fibers so making it an excellent, flexible, no-itch, fiberglass alternative that’s easy to install in residential and commercial ductwork. You’ll get cleaner acoustics between rooms and a quieter system overall—without compromising on air quality or fire safety.
Free Shipping Details
Thickness |
Free Shipping - Ground |
Free Shipping - LTL Freight |
1/2" | 0 - 1199 Sq Ft | 1200+ Sq Ft |
1" | 0 - 599 Sq Ft | 600+ Sq Ft |
2" | 0 - 399 Sq Ft | 400+ Sq Ft |
Features
Specs
Full Roll Dimensions | 4' x 100' (1/2") 4' x 50' (1") 4' x 25' (2") |
Thickness | 1/2", 1", or 2" (Nominal) |
Density | 1.5, 3.0 |
Color | Marble blue with black protective facing |
Thermal Resistance (R-value) | 4.0 per inch |
** Handling and shipping fibrous materials may slightly compress the material. After hanging or mounting, the material will uncompress. **
Resources
Spec Sheet | EcoVerb Roll Product Sheet |
Architect CSI Spec |
Material Testing
Noise Reduction Coefficient
Frequency (Hz) | 125 | 250 | 500 | 1000 | 2000 | 4000 | NRC |
1/2" EcoVerb™ Roll Acoustic Duct Liner | 0.04 | 0.11 | 0.26 | 0.54 | 0.70 | 0.83 | 0.40 |
1" EcoVerb™ Roll Acoustic Duct Liner | 0.07 | 0.33 | 0.72 | 0.99 | 0.93 | 0.96 | 0.75 |
2" EcoVerb™ Roll Acoustic Duct Liner | 0.35 | 0.94 | 1.32 | 1.22 | 1.06 | 1.03 | 1.15 |
Tested Properties | Testing Method | Performance |
---|---|---|
Operating Limits (Temperature & Velocity) | ASTM C411 |
Max 250°F & 5000 fpm |
Temperature Resistance | ASTM C518 |
R-Value: 4.0 per inch |
Fire Rating | ASTM E84 |
Class A |
Water Vapor Absorption | ASTM C1104 |
Less than 1% |
Corrosion Resistance | ASTM C739 |
Pass |
Fungal Growth | ASTM C1338, ASTM G21, ASTM C739 |
Pass (No growth) |
Bacterial Growth | ASTM G22 | Pass (No growth) |
Installation Instructions
HVAC
Common Product Uses
Contact us if you have questions!