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The condition of
the resilient surface underneath an elevated structure can make the difference between a
bruise and a broken bone. Understanding what to use and how to apply an
adequate safety surface is one of the most important factors in preventing
serious injuries.
With the exception of
sand which can be purchased in Hawaii, most surfacing materials are very expensive
which causes many private organizations to forgo providing adequate surfacing.
As long as you have an elevated structure which kids are intended to climb atop
of, a six foot, fall zone around the perimeter of the structure should be
installed. Surfacing will occupy more space and will often cost more than the
commercial structure installed. In addition, because of the limited play value
associated with elevated equipment, other types of play features that do no
require surfacing are strongly recommended.
The
safety surfacing used for a playground should primarily be based on the height
and type of equipment used. Other factors such as maintenance and
immediate environmental conditions also play an important role in the final
choice. Every surface has its good and bad aspects, so it is critical to know
what you are getting into. Contrary to popular belief (partially supported by
Hawaii based playground companies) the use of rubber surfacing is not mandatory
in private or publicly accessible playgrounds.
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Surfacing
Materials
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Estimated cost for a 30' by 30' play
area. (shipping included)*
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Sand
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In Hawaii the best choice of sand is Island
Beach Sand which can be purchased directly from Hawaiian Cement at
their Campbell Industrial Park location (673-4200). It is screened,
non-staining and has a higher drainage rate than any other sand. Like any
loose-fill material, it is essential to provide proper drainage to prevent
compaction. Sand is not ADA compliant, but resilient pathways can
affordably be installed by applying rubber tiles or mats.
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$2,300
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Wood
Carpet
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Engineered
wood fiber is increasingly the first choice for playgrounds. Manufactured
by Zeager Bros.
Inc., Woodcarpet has a warranty of 15 years and offers
more protection than any other material sold. The cost of shipping
to Hawaii increases the estimated cost by 40%. We are currently
asking Hawaiian Earth Products (682-5895) to develop a product to help organizations
provide safer playgrounds. We urge you to do
the same.
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$3,500
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Crumb
Rubber
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At a six inch depth, crumb rubber can
cushion the fall of a ten foot drop. It is composed of recycled
rubber tiles and will last for the life of your playground. As with
most loose-fill materials, regular maintenance is essential and the
material should be raked back into place under high impact areas such as
swings and slides. Children are also fond of throwing the material outside
of the play area which will limit its effectiveness at such a shallow
depth.
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$4,500
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Rubber
Tiles
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Rubber
tiles are used in play areas that are not routinely maintained (loose-fill
materials have to be raked back into place). The product we offer is
a recycled rubber which comes in either a uniform color or a granulated
surface. Using a pin system, the mats are held firmly in place and can be
removed when necessary. It has a five year warranty and is
guaranteed not to curl up at the edges. See Environmental
Molding Concepts, San Bernardino, CA.
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$7,600**
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Poured-in-Place
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Poured
in place is composed of a sub-layer of shredded rubber with a thin,
granular top. It is generally softer than rubber tiles because it is
not as compact, but this also leads to a shorter life span since the urethane
bond will begin to deteriorate, especially under a tropical sun.
Poured in place must also be installed by a trained staff who can keep a
uniform top. Before choosing this option, ask an installer to see an
example of their work that is at least five years old.
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$10,500**
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* All loose-fill
surfacing costs include the used of a subsurface, drainage system. This is
primarily composed of two layers of a weed barrier, four inches of rock, and PVC
pipe. Without this drainage, weeds will quickly penetrate the surfacing and
materials such as sand quickly compact. Quotes are based on a critical
fall height of at least eight feet.
** Cost does not
include a subsurface layer of either compacted rock or concrete. Compacted
rock with a timber or concrete border costs between $3,000 and $5,000. A
concrete surface will cost between $10,000 and $15,000 and is best used in very
wet climates.
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Loose-fill
Borders
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Estimated
cost for a 30' by 30' play area. (shipping included)
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Molded
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This
is a rotationally molded plastic border standing at twelve inches high and
extending six feet. It is secured with galvanized spikes and is
available in several colors (add 25% to the cost). The product can be
removed and repositioned when necessary. Offered through many playground
retailers, we purchase these borders directly from the manufacturer so
there are no extra hidden costs.
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$1,100
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Recycled
Plastic
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Made
in Maui at Aloha
Plastic Recycling, plastic lumber is an attractive and
practical material to landscape your play area. There are a variety of
colors (gray, green, brown & black) and sizes you can choose from. We
recommend stacking two overlapping four by four beams which can be secured
to each other with lag bolts. Recycled plastic tends to conform to the
shape of the area it is resting on, so it is important that it is
installed on level ground. Use wood only as a top layer since it
will quickly rot when resting directly on the ground.
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$1,250
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Hinge
System
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The most economical way of providing a
border system is through the use of a hinge system. Boards made of either
plastic or wood are secured to the hinges at intervals of between four and
six feet. The product on display is made from plastic and suited for
residential or daycare use. For playgrounds that are subject to greater
use and abuse, we offer a galvanized substitute which is fabricated
locally.
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$750*
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* Price is estimated for an eight
inch high border made of recycled plastics and set at 5 foot intervals.
The cost of using galvanized steel hinges at four foot intervals is
approximately $1,300.
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