Making air ducts quieter

Noise leaking from air ducts
Ventilation ducts and shafts are needed to dissipate heat and supply cool air. However, these channels regularly compose leakages of noise as well, since they constitute open connections between the outside environment and the engine room.

How to insulate air ducts and air shaft in vessels?
Small air ducts, round in shape, are easy to insulate by the use of the Inno Dampers. These dampers are made of an acoustic foam that absorbs airflow and engine noise. Inno Dampers have removeable plugs to adjust the airflow. We advise to remove all plugs from the dampers for optimal airflow and still have sufficient noise insulation. Place two Inno Dampers in the air duct with a space of about 10 cm between the two. Make sure the dampers can’t get wet or to moist since there are made of foam.

Insulate airflow and engine noise from rectangular shaped air ducts or air shafts, in larger commercial shipping vessels for example, with Acousticcell in dry air ducts or Acousticcell PU in ducts where moisture can occur. For the insulation of large air shafts we always advise to use a product with a moisture proof top layer, we recommend Acousticcell PU with seams taped off with PU Finishing Tape to prevent the intrusion of moisture or dirt.

Products to insulate the air ducts and air shaft in boats and vessels

Insulating air ducts in vessels