Acoustical Products Made in USA.
Modern office buildings rely on high-capacity air distribution systems to maintain comfort and ventilation standards. However, as airflow velocity increases, duct surfaces can radiate sound into occupied areas. This phenomenon, known as HVAC duct breakout noise, occurs when pressure fluctuations inside sheet metal ductwork excite the duct walls and transmit airborne sound outward.
Standard duct insulation is primarily designed for thermal performance. While it improves energy efficiency, it does not significantly increase surface mass or reduce sound transmission. Without proper treatment, duct walls act as sound-radiating panels, contributing to elevated background levels in open-plan offices and conference rooms. This can negatively impact speech intelligibility and productivity.
The DuctaSil® B10Lag™ Pipe & Duct Barrier System provides a specialized solution for commercial HVAC noise control. By incorporating a high-density mass-loaded vinyl barrier combined with an acoustical insulation layer, the system reduces airborne transmission through duct walls. The added mass blocks breakout noise, while the decoupled layer reduces vibration energy.
Implementing an effective duct soundproofing solution improves acoustic comfort without redesigning the mechanical system. This makes it ideal for both new construction and retrofit applications where reducing background noise is a priority.
