Sound Barrier Systems solves the noise problems

The weakest acoustic link in a building is the Sound Barrier Systems has a solution to solve the noise problems. By installing a Sound Barrier System inside existing noise-affected windows and doors the STC rating will increase to STC 42-44 with the result that the windows/doors perform at an equal or better STC rating than the walls. 

Sound Transmission Class (STC) is the internationally used rating to evaluate the acoustical integrity of various building elements such as floors, doors, windows and ceilings. By installing a window or door by Sound Barrier you will notice an improvement from STC 20 to STC 42-44.

There are also replacement windows and doors available ranging from STC 30 to STC 50+.