the vital role of acoustical door seals - free article ...

The importance of acoustic door sealing stems from a fundamental characteristic of Sound: sound waves travel at any opening and the loss is small.Although the air volume through the gap increases proportionally with the size of the gap, the size of the gap in the sound barrier is not important.A small hole makes almost as much sound as a much larger gap or hole.
For example, a square inch hole in a gypsum board partition of 100 square feet can transmit as much sound as the rest of the partition.Due to this phenomenon, any unsealed clearance and clearance in the door assembly effectively removes the noise reduction benefits of the sound level door.In the medium to high frequencies where normal session levels usually occur, performance losses are particularly serious.
In order for the acoustic door seal to effectively block the sound, the head of the door, the jamb and the sealing around the windowsill must be complete, uninterrupted and sealed throughout the service life of the door.For uninterrupted contact, the door seal must be installed on the same side of the door and door frame.Performance also depends on good surface contact between the seal and the door edge or frame, which can usually be achieved by compressing the seal.
However, the gap caused by imperfect door alignment is a common problem in newly installed seals, and as the buildings move and settle and the doors cycle through changes in temperature and humidity, theseOver time, in order to achieve consistent performance, state-of-the-art acoustic door seals are designed with adjustable functions to restore soundWhen the gap increases for any reason, the seal is tight.As with the door itself, the quality of the sealing material used in the Acoustic liner is a major factor in achieving a higher noise reduction level.The combination of free materials can also provide better performance.
Ultimately, the quality of the Acoustic liner or seal is the biggest factor in overcoming any installation hazard and determining how close the actual sound performance of the Assembly is to the published rating of the door.Acoustic door sealing kit can be provided, including a bottom of an automatic door operated by a spring, dropping the neoprene seal onto the threshold effectively sealing the bottom of the door.In addition, the door cover also includes highGrade neoprene door post on vertical side and top of door.
Custom Kits are available for oversized, under-sized doors and double door opening.For more information about acoustic door seals, please contact the acoustic solution at 1-800-782-5742 or access them at http:/www.Acoustic Solutions