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 Since the stone age, the Willow tree has been
crafted and transformed into practical and beautiful products. This
historical tradition has led to the inspiration for the design of
environmentally friendly sound barriers for noise abatement, fencing and
screening; The Green Barrier™ in woven willow.
DESIGN
The Green Barrier™
in woven willow is a product where double units, when assembled incorporating a
RockDelta® core, are unbeatable as a sound barrier.
The woven barrier was developed due to the need to
create an aesthetically unique and effective barrier. Whilst at the same
time meeting technical standards as well as the need for long life
expectancy and minimal maintenance. When combined with RockDelta®, they
offer first class noise abatement.
- From time of installation, the barrier has an
aesthetically pleasing appearance, made out of willow, hardwood and
some steel.
- After a period of years, the willow elements
become reinforced by Ivy and other evergreens, which by then have
covered the barrier.
When used as a sound barrier, combined with the
absorbent RockDelta® core, tested and approved in the highest
noise-absorption and noise-reduction class, a reduction of between 25
-31db can be achieved. Life expectancy is 25 + years.
AESTHETICS
 All good designs integrate technology and
practical product solutions with an aesthetically pleasing appearance.
- The woven willow is an integral part of the
construction. Load bearing yet decorative, it forms the outer
construction of the barrier.
- Made from natural and living materials, the
barriers blend into both urban and rural surroundings.
- The woven and dried willow rods create a
colourful and glowing surface - generally with red, green and
orange/brown nuances.
ENVIRONMENT
- Constructed from locally grown willow and
hardwood, all produced in sustainably managed European forests.
- Willow is produced in non-intensive coppice
plantations – providing natural habitats for local flora, fauna
and wildlife.
- All materials used can be fully recycled.
CONSTRUCTION
The
Green Barrier™ in woven willow consists of 2 to
3 year old willow rods, of selected species and types of willow, woven
firmly around galvanised tubes, held in a wooden frame. This enables
rapid and simple construction with the panels being easily handled. The
elements are concreted directly into the ground.
 The woven Green Barrier is ideal for north facing,
dry and shady locations, where conditions preclude the use of living
willow.
- Sound barriers are 45 cm. wide.
- Freestanding, the barriers have a maximum
height of 3.5 m. (4.0m with care in certain situations) With
construction on top of soil bunding, however, additional height can
be achieved.
- Materials are calculated according to height,
exposure and wind pressure on the barrier. The elements are thin,
light-weight and versatile. They offer many options for designers
and architects.
- Construction techniques are straightforward
whether for simple fencing or the creation of sound control
barriers.
- With installation possible at any time of year
there is no limit to construction period.
- Rapid, low cost construction.
- Minimal maintenance costs.
MAINTENANCE
The Green Barrier™
in woven willow requires very
little maintenance. After the first evergreens have become well
established, in the early years of growth, the remaining lifespan of the
barrier requires almost no maintenance at all.
- The planting of ivy, and other evergreens if
desired, along with drip irrigation is strongly recommended.
- It is vandal and graffiti resistant. Natural
materials very seldom encourage graffiti and woven willow does not
provide a receptive surface.
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