How does a hedge act as an effective noise protection?

Chronic noise in the garden can significantly affect the relaxation and enjoyment factor of the private oasis. But who wants to surrender his green paradise with a sloppy soundproofing wall? Fortunately, a certain amount of noise reduction is also possible with a hedge.

Advantages and disadvantages of a hedge as a noise protection

Somehow it is already clear that a hedge cannot offer as effective noise protection as a solid concrete wall. Physically, this is easy to justify, because sound frequencies, like all substances, penetrate dense masses more poorly. So thick and thick is more soundproof than thin and full of holes.

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This is why the following also applies to hedges that are supposed to act as noise blockers: the thicker and richer in substance, the better. A study by the Fraunhofer Institute for Building Physics in 2011 has shown that hedges can have a noticeable sound insulation effect under certain circumstances. Even if not such a good as noise protection walls.

According to the investigations, above all the following factors are important for the effectiveness:

  • Aspicious, round leafy foliage
  • as poet as possible
  • Soil environment as possible

A thick and round-pailed foliage of the hedge plants ensures that deeper frequencies are better blocked. So that this effect can unfold well, the leaves with their leaf top should also be as perpendicular to the sound incident. How to form more blocking surface. As a well-suited wooden woods are therefore recommended ivy or the wrinkled snowball. Rhododendrons or laurel cherries can also cause relatively good sound insulation. Other popular hedges such as horn books or Thujen are because of their horizontal, fine or or. Suitable blade structure of worse than silencer suitable.

The hedge should be as dense as possible so that there are as few loopholes as possible for the noise. This means that it must not thin out in the lower area either. With regular pruning, the best thing to do is to achieve a dense, compact shrubbery.

The soil around the hedge also plays an important role in reducing noise. If it is smooth and hard, it can throw back sound frequencies and thus increase the noise level. So, if possible, lawn should grow around the hedge. You can also consider a compact ground cover such as the golden strawberry or ysander.

A tip for the impatient

If you want to have more peace and quiet as quickly as possible and don't want to wait years for a tightly-fitting hedge, you can also use a concrete fence with integrated planters. One of these can be planted quickly and, thanks to its own weight, already offers good soundproofing.