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Acoustic Barriers
>Woven - Technical
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 All
good solutions integrate the technical design of the product, which
gives a good aesthetic appearance. The sound barrier incorporates
the ornamental function of the willow trees directly with the load
bearing construction of the barrier.
The Woven Barrier comprises of dried
willow, hardwood, a little steel, ivy and absorbing RockDelta. A
design made out of natural materials, which makes the barriers blend
into both urban and rural surroundings.
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Approved to be in the highest
reduction and absorption class
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A minimal maintenance
sound barrier and fence
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Life expectancy of 25 years +
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NOISE
REDUCTION
 Both noise
insulation and noise absorption tests have been carried out on the
RockDelta rock wool core at the German acoustics laboratory, ITA (Ingenieurgesellschaft
fur technische Akustik mbH, D-65205 Wiesbaden-Delkenheim). Tests were
carried out in accordance with EN 20140-3.
NOISE ABSORPTION According to the CEN
standard, EN 1793-1, the noise screen belongs in category A4(Dla>11dB),
which is the highest absorption class.
NOISE INSULATION According to the future
CEN standard, EN 1793-2, the noise reduction screen belongs in category
B3(Dla>24dB), which is the highest reduction class.
The noise
insulation value is 31 dB.
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| Frequency
(Hz) |
Absorption |
| 100 |
0.57 |
| 125 |
0.67 |
| 160 |
0.56 |
| 200 |
0.69 |
| 250 |
0.75 |
| 315 |
0.82 |
| 400 |
0.82 |
| 500 |
0.95 |
| 630 |
0.96 |
| 800 |
1.00 |
| 1000 |
0.99 |
| 1250 |
1.00 |
| 1600 |
1.00 |
| 2000 |
1.00 |
| 2500 |
1.00 |
| 3125 |
1.00 |
| 4000 |
1.00 |
| 5000 |
1.00 |
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SPECIFICATIONS
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Dimension
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Width |
Height |
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Basic barrier |
50cm
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Max 3.5mtrs |
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Construction |
Can be installed at any time of year
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Maintenance routine |
Almost free from maintenance, when first
evergreens are well established during the first years of growth.
The next 25 years very little maintenance is needed.
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"Green" barrier |
Over time the barrier will be covered with ivy, assuming the evergreens have been
maintained properly during the early years. |
The Green Barrier™, patented design & construction
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Last modified: October 02, 2008