Soundproof windows

Do you live on a busy road or near a railway line? Then you know how irritating it can be when noise gets into your house day after day. With heroal soundproof windows, you can reduce the sound level by up to 48 decibels (dB) and make a huge improvement to your quality of living. In addition to the thickness and mass of the window panes, the window frame and the proper installation of soundproof windows are important factors in effectively reducing the noise level. The principle is that the window should absorb the sound without passing it on to the living space. We will show you when an acoustic window is recommended, how high the sound reduction index and the sound insulation class should be and which properties make a good soundproof window.

Ongoing noise is not only irritating, it can also affect your health. For adults, ongoing noise can have an impact on the cardiovascular system. For children, an ongoing high noise level has a significant impact on brain performance. Especially for people who live in a big city, on a busy road or near an airport, it is advisable to protect yourself against noise with acoustic windows. There are no general rules for the volume level that makes an soundproof window necessary. Noise is perceived subjectively, and each person feels a slightly different noise level to be disturbing. In general, however, a level of 55 decibels (dB) or higher makes it difficult to concentrate. Starting at 65-70 dB, there is an increased cardiovascular risk; and starting at 85 dB permanent hearing damage can occur.

Many factors influence the functionality and performance of an acoustic window. The glass thickness, the space between the panes, the material of the window frame, the construction and the installation of an soundproof window all play an important role in ensuring effective sound insulation.

The German Sound Insulation Regulation DIN 4109 defines minimum requirements for sound insulation as well as six sound insulation classes to determine the acoustic properties of windows. It is intended for use in comparing various sound insulation measures. The sound insulation classes are determined by the sound reduction index Rw in dB (decibels). The sound reduction index describes the sound insulation of an installed soundproof window. In order to be able to estimate which sound insulation class is required for effective sound insulation, the table below shows sound insulation classes for specific traffic volumes and distances to the road.

However, the required sound insulation for a window also depends on the respective function of the living space. The following values can be used for orientation. During rush hours, the noise level should not exceed 25 dB in a bedroom, when the windows are open, 35 dB in a living room and 35 to 50 dB in a study. When it is time to start making plans for the installation of acoustic windows, the required soundproofing class should be determined in advance with a measuring device. A measurement is best made when the noise level is at its highest. If the noise reaches a value of less than 25 dB in the bedroom, a simple class 1 soundproof window with a sound insulation value of 25 - 29 dB is sufficient. However, if you measure a value of 43 dB, for example, you should opt for a class 4 soundproof window, which provides a sound insulation value of around 40 to 44 dB.

To determine the right sound insulation class for you, it is best to contact an experienced specialist adviser. With our partner search tool, you can find a heroal professional in your area who can determine the sound insulation class you need and install the right acoustic window for you. Find out now about heroal specialist partners near you.

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