[permaculture] noise barrier
keithdj at mindspring.com
Wed Apr 26 00:14:00 EDT 2006
The zigzag form is also very useful for making a one-brick-thick wall
very strong as well as making lots of great edge for planting and
microclimates. I've got pix of a couple in my Patterns slide show.
Also I should have said that I planned a berm and earthen (or other)
walls (with plantings upon them) for sound barriers. I do, in addition,
intend to use vegetation to support these initial structures in doing
their job. Sorry for the poor phrasing.
sustain_ability at 123mail.org wrote:
>I seem to remember a zig-zag shape for a noise reducing wall (composed
>of a suitable material), so that the sound waves cancel each other out
>(in principle). The opposite effect is achieved in concert halls.
>Rushing water is a good idea, I'll bet.
>On Fri, 21 Apr 2006 09:14:02 -0700, "Toby Hemenway"
><toby at patternliteracy.com> said:
>>Vegetation is not very effective at blocking noise unless it is dense and
>>20-40 feet wide. Ten feet of dense hedge helps some, but loud noises like
>>traffic, dog barks, or animated conversations will penetrate it easily.
>>an effective barrier, you'll need something solid. Two thin walls with an
>>air gap between is very effective.
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