Download Title of the presentation - Sports Turf Managers Association

Selecting The Proper
Turf System
FSB 2011
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Introduction
 Installing an artificial turf system requires a substantial
investment.
 Therefore, selecting the proper turf system is paramount.
It is important to understand that not all synthetic
surfaces are created equal.
 We encourage all of our clients to get properly informed
prior to making their purchase decision.
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4 Steps to Success
 Usage Assessment
 Financial Assessment
 Vendor Selection
 Product Selection
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Usage Assessment
 There are several key questions that should be answered
during the turf purchasing process to help determine the
proper vendor / product for your project:
 What sports will be played on the field?
 How many hours of use will the field receive?
 Will the field require any certifications? (IRB, FIFA, AFL, FIH)
 What is the desired / intended life cycle?
 Specific considerations should be given to:
 Sports requiring special products – field hockey
 Field size – smaller pitches require more durable features
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Financial Assessment
 Prior to starting the turf selection process it is important
to determine what makes financial sense for the project.
With that, there are two key questions:
 What budget is available for the project?
 What budget will be made available for annual maintenance costs?
 The most important aspect to remember is that artificial
turf is an investment – there must be a justification for
ROI.
 Warning
 A cheaper price is not an indicator for value.
 You get what you pay for.
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Vendor Selection
 Key Questions to determine which vendor is the ideal
partner:
 How long has the firm been in business?
 How are the company’s financials?
 How many fields have they installed?
 Which approvals / certifications does the company have?
 Do they control their manufacturing process?
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Product Selection
 There are eight main elements to review in order to
validate choosing the proper turf system for your needs.
 Fiber
 Pile Height
 Turf Spacing
 Infill Type
 Infill Depth
 Underlayments / Shock Pads
 Backing
 Seams
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Fiber
 Turf fibers are responsible for comfort and safety of the
player, durability, natural grasslike look with soft and
pleasing grass-like feel, and resilience. The ideal fibers
should possess lowest skin friction, reduced skin
abrasion, superior durability, high resilience, and
temperature stability.
 When it comes to fiber type, there are three options:
 Monofilament
 Slit-Film
 Hybrid
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Fiber
 Monofilament
 Known for their resilience and aesthetics.
 Monofilament systems have been in use for over five years with
continued success.
 Slit-Film
 Slit-Film systems have been in use for well over 10 years with
great success in the turf industry.
 Ideal for high use areas such as mini-pitches (Under 4,000 sq.m).
 Hybrid
 Combine Slit-Film and Monofilament fibers.
 Over time, the system will look and perform like a Slit-Film
system.
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Fiber
 Three keys to fiber development:
Polymer
Process
Geometry
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Pile Height
 Pile height refers to the length of the grass blade.
 The length of the blade is directly related to the amount
of infill that can be inserted into a given system.
 The more infill the system has, the better the shock
absorption properties will be. Shock absorption is
directly related to player safety.
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Pile Height
 1.6” (40 mm)
 Shorter pile systems are becoming more prevalent due to the introduction of
various underlayment systems. Increased shock absorption properties allow
for the fiber to be shortened and for less infill to be used.
 2.0” (50 mm)
 This height is ideal for non-contact sports such as Football, Baseball, and
Lacrosse.
 2.25” (57 mm)
 A mid-range pile height ideal for all sports, contact included. This height is
ideal for park and recreation applications looking for the ideal compromise
between shock absorption and cost.
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Pile Height
 2.5” (63.5 mm)
 This high performance pile height is the ultimate in safety and performance
for athletes of all ages and is by far the most popular pile height offered in the
industry today.
 2.75” (70 mm)
 A little extra pile height makes room for extra infill which is required for IRB
(International Rugby Board) and AFL (Australian Football League) approval.
Both the IRB and AFL have put into place HIC requirements which require
extra infill.
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Turf Spacing
 The spacing of the system must be open enough for the
athlete to cut, plant, and release in the infill system –
proving for grass-like traction.
 Typical system options range from:
 3/4” / 19.0 mm
Wide
 5/8” / 15.9 mm
 1/2” / 12.7 mm
 3/8” / 9.5 mm
Tight
 The right spacing for a turf system is ¾”as it has proven
to provide ideal cleat interaction.
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Infill Type
 SBR Rubber
 Cryogenic (SBR) Rubber
 This rubber consists of ground-up recycled tires which have been cryogenically frozen to allow for a
cleaner partition of the pieces and turning the rubber into small, smooth-edged particles. It is the
ultimate form of an environmentally friendly product.
 Ambient (SBR) Rubber
 Also made from ground-up tires, ambient rubber is processed through a high powered rubber
cracker mill at ambient temperature. The result is a more jagged rubber granule creating air pockets
which can increase its propensity to float and facilitate infill migration.
 Alternative Infill Materials
 Thermoplastic Elastomer (TPE)
 The infill pellets are harder than typical SBR granules but are also quite durable. Only the best
grades of TPE have characteristics which allow them to remain durable by rebounding back to their
original shape after compression.
 Ethylene Propylene Diene Monomer (EPDM)
 The material is soft yet does not withstand sports use quite as well as SBR. EPDM also comes at a
significantly higher price tag due to its complex manufacturing process.
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Infill Type
 Alternative Infill Materials
 Nike Grind
 Consists of recycled athletic shoes and Nike manufacturing scrap which are ground up and turned
into infill crumb.
 Organic
 These infills either consist of cork, coconut shell, or a combination of both. They are viewed as
organic due to the materials they consist of, but the playing conditions of fields which have this infill
are far from being “natural”. The material typically becomes soggy and migrates during rainfall.
 Coated (SBR) Rubber
 Polyurethane-coated (colored) rubber has been introduced to the market as an attempt to reduce
the temperature of fields in warm areas. This effort has proven to be ineffective. The process simply
involves coating standard crumb rubber with a light color, in hopes that less heat would be absorbed
by the infill.
 Coated Sand
 Testing has proven that coated sand is not sufficiently robust to withstand outdoor use and the
abuse of high traffic areas on sports fields. It may have a perceived low cost compared to some
other alternative infills, but a high quantity is required to fill a full field, driving the cost up.
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Infill Type
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Infill Depth
 Infill depth is key to maintaining a grass-like
appearance, while also ensuring proper playability and
longevity of the fiber.
 Ensuring proper infill depth will contribute to the
longevity of the turf fiber and lead to the natural
progression of an artificial turf field. This aspect is the
most important part of turf construction.
 The critical mistake in turf installation, regardless of the
type of infill, is the under filling or over filling of the turf
system.
 Avoid the major risk of over-infilling or under-infilling
your turf system - demand 2/3 ratio of infill depth in
your specifications!
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Infill Depth
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Infill Type
 Layering Options
 Sand-and-Rubber (3-Layered) Infill
 The 3-layered infill system is the most intricate and most meticulous infill system
available on the market. This method has been proven to offer the best shock
absorption and energy restitution results for both the safety and the performance of
athletes playing on the field.
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Infill Type
 Layering Options
 Sand-and-Rubber (heterogeneous mix) Infill
 Sand is deposited at the base of the turf carpet to stabilize the whole system and to
offer a firmness which is required for athletic performance. Crumb rubber is laid over
the sand to create a soft surface with safe shock absorption.
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Infill Type
 Layering Options
 Sand-and-Rubber (homogeneous mix) Infill
 Sand and crumb rubber are mixed together before the particles are deposited
between the turf fibers.
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Infill Type
 Layering Options
 All-Rubber Infill
 Crumb rubber is the only element used to fill up the entire turf system. All-rubber
fields have been identified as being far too soft and subject to quick deterioration. The
infill migrates easily and the lack of mass at the base of the turf makes the field
vulnerable to other damages. It simply does not offer suitable safety and performance
characteristics.
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Underlayments / Shock Pads
 Underlayments, also known as e-layers or shock pads, were introduced along
with carpet type turf systems in the 1960’s. Pads were vital to these systems as
they provided the shock absorption required to limit player injuries.
 Introduction of long pile systems with heavy weighted infills in the 90’s
eliminated the need for a separate pad. There has been a recent movement by
some to re-introduce pads to the marketplace.
 Today, pads are used for two reasons:
 Shock Absorption
 Lightweight turf systems (4 lbs of infill or less) typically require a separate pad to allow for proper
shock absorption. Short pile turf systems (less than 1.75”) also require a separate pad for the same
reason.
 Drainage
 These systems are designed to eliminate the need for excessive amounts of stone and also provide
for some shock absorption.
 The Challenge – To find a pad system with ideal shock absorption and
drainage at a fair price.
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Backing
 Turf backing has three objectives:
 Drainage
 Turf Bind
 Stability
 There are two main backing types:
 Finger Coated
 In order to secure the fiber’s tuft bind, a quality urethane
coating is only applied along the fiber rows, allowing for
the remainder of the backing to be made available for
drainage. Finger coated backing is naturally 40% porous.
 Solid Coated
 Holes are perforated through the primary and secondary
backings to facilitate drainage. The proper is to puncture
0.25” holes that are approximately 3” apart in both directions.
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Seams
 The seam is the lifeline of the field. It facilitates the combination of large turf
panels which results in one unified field system. The long term risks associated
with poorly sewn or glued seams are simply not worth the short term costs.
Reoccurring problems with seams are the number one maintenance issue
affecting fields around the globe.
 Sewn Seams
 Preferred method of joining artificial turf rolls
 Proven durability
 Long lasting and require minimal to no maintenance
 Glued Seams
 Low quality option
 Large turf panels can shift and raise over time
 Displaced infill can lead to two dangerous and
detrimental outcomes.
 Loose infill will reposition itself beneath the panels
resulting in a mound, or the infill will migrate from
beneath a panel leaving a hollow zone in the field.
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Reviewing the 4 steps
 Usage Assessment
 Sports, hours of use and certifications
 Financial Assessment
 Budget for project construction and maintenance
 Vendor Selection
 Evaluating the company’s experience, financials and quality control
 Product Selection
 Fiber type and height
 Infill depth and type
 Backing
 Type of seams
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Darren Gill
Vice-President, Marketing
FieldTurf
+1-514-862-4094
[email protected]
www.fieldturf.com
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