permaculture

[Toby Hemenway <toby@patternliteracy.com>]

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. For
an effective barrier, you'll need something solid. Two thin walls with an
air gap between is very effective.

Toby

On 4/20/06 7:13 PM, "Keith Johnson" <keithdj@mindspring.com> wrote:

> We plan to use berms (about 4 ft high in our case), plus earthen walls
> and vegetation for sound blocking. Additionally muffling white noises
> can be created with falling water, bamboo in the wind, and lots of fruit
> means plenty of bird song. I've used larger ones in designs for clients
> to good effect.
> Keith
> 
> Charles de Matas wrote:
> 
>> Does any one have any ideas for a noise barrier?  I want to put a noise
>> barrier between my house and a neighbour's.  Will vegetation alone be
>> effective? or do I need a solid concrete block or clay block wall?
>> 
>> Charles.
>>  
>>