WHIS®top, an innovative add-on for existing noise barriers

Application of the WHIS®top on existing noise barriers will lead to an extra noise reduction of 4-5 dB. This is comparable with adding an extra height of 2 meters to the noise barrier. The WHIS®top is an effective and efficient solution, the installation is very simple and the costs are very low comparing the alternative.

When the WHIS®top is applied on an existing noise barrier which is already on a bridge or other structure, expensive adjustments to the main bearing structure are often not necessary.