If noise is perceived as Stress, high blood pressure and diseases of the circulatory system be the result. The house can protect - with soundproof Windows.

Berlin (dpa/tmn) - the noise is a nuisance, and to escape him, even in his own apartment hardly. Road and air traffic, passing trains, especially in cities, many people suffer from constant noise, the your usual Windows not keep out. The solution in some cases: noise protection window.

What is this sound insulation window can?

soundproof Windows to keep the worst of the noise out there - provided there are the right ones and they are mounted properly. "In residential areas, noise protection window, are even required by law, if the ambient noise exceeds certain boundaries," explains Marc Ellinger, the Association of Private builders.

compared To normal Windows, soundproof Windows have a stronger glazing with asymmetrical structure and the glass built-in sound protection foils. Also, frames and seals are extra isolated.

There is this window with different high noise protection values: Normal window with insulating glass noise limit from the outside to about 32 decibels. Simple soundproof Windows create values of 40 to 42 decibels, so-called composite-resistant to 50 decibels, and the box window is 55 decibels, enumerates Jürgen Benitz-wildenburg by the ift Rosenheim, a testing Institute for window technology.

What window do I need?

"Be measured, for example, out of 80 decibels, but quiet 30 decibels to be achieved, you need a window with a sound protection value of 50 decibels," says Benitz-Wildenburg. In the case of a low ambient sound pressure level of about 60 decibels, the normal double glazing would be sufficient.

I Can analyze the window of choice? to go

"With the phone in front of the door and the noise did not bring much. This results in deviations from at least five to ten decibels," says Benitz-Wildenburg. Through the window, which were insulated with ten decibels too little, hear the noise with at least twice the volume than in the case of exact interpretation.

Vice versa, it makes no sense to buy for the sake of safety of 20 decibels more than is necessary. "This is rather unpleasant, because it is too isolated. It's like in a soundproof room." But you can inform yourself in advance: cities and municipalities, the Deutsche Bahn have created so-called noise maps, in which you can inform about the Situation in his home environment.

I have such a window, and they bring little. How can that be?

"For sound insulation it is necessary to consider the entire wall with the window and all of the joints. The sound insulation can be in the sum only as good as the weakest link of the composite components," explains Frank Koos from the Verband Fenster + Fassade.

you can Even load tiny Openings, or leaks about rolling sound. "First of all, the design of the connection joints is decisive for the sound insulation of the entire component," says Koos. This must the interior and exterior are peripherally sealed and covered with insulation material filled. In addition, it is recommended that the shutters to insulate the box.

there Are solutions, if you want to sleep with the window open?

"A sound fan under or next to the window can help here," says Benitz-Wildenburg. "He brings fresh air into the room, makes the sound but on the outside."