Guest Column - November 2006
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Raising the Grade on Playground Surfacing Safety

Safety Surfacing

By Jim Dobmeier


When selecting a poured-in-place supplier, consider the following advice:

  • Ask about the amount of material (per square feet) in the top layer. The more material used in the top layer, the more strength and the longer the life of the top surface. The increased material also creates superior tensile strength (side-to-side pulling) and superior taber abrasion (top-down wear).

  • Ask about the quality of urethane and rubber. All product components are not made equal. There are many types of urethane that are produced for a variety of other applications. Urethane for playground surfaces requires particular levels of tensile strength, flexibility and working time versus curing time. The urethane component is the strength of the surface. Using a proven urethane can increase the life expectancy of the surface by up to five times that of a surface made with a low-grade, poorly formulated urethane. Rubber is also produced in different grade qualities. Using rubber with a low dust content and high production quality creates consistency. Too much dust causes the urethane to be absorbed, reducing the amount available to bond granules and strands together. The bonding provides strength to your system. Also look for rubber that is consistent in size and color, free of contaminants, and formulated with a high percentage of ultraviolet stabilizers. The biggest enemy of a surface, besides use, is the sun.

  • Ask about the type of warranties offered. All warranties are not created equal.

  • Ask about the experience of the installation crew. A poorly installed surface equals a poor surface. The best installation crews are full-time, poured-in-place applicators with a proven track record.

  • Ask for references from satisfied customers. Evaluate the duration and content of the warranty and the strength of the company behind the warranty.

In the interest of playground safety, the International Play Equipment Manufacturers Association (IPEMA) provides a third-party certification service whereby an independent laboratory, Detroit Testing Laboratory Inc. (DTL), validates a surfacing manufacturers' certification of conformance to ASTM F1292, Standard Specification for Impact Attenuation under and around playground equipment. Surfacing companies that display the IPEMA playground surfacing certification logo have received written validation from DTL that their products conform to the requirements of the standard. Check the IPEMA Web site (www.ipema.org) to confirm product certification and the IPEMA-certified thicknesses and critical-fall-height matrix.

For children and playground attendants with special needs, a poured-in-place or tile system adds a crucial level of safety a loose-fill surface cannot provide. When a consistently even surface is installed, wheelchairs, braces and crutches can negotiate the playground without difficulty, thus conforming to the requirements of the Americans with Disabilities Act and the ASTM F-1951-99 determination of playground surface accessibility. In addition to being user-friendly for the entire population, the porous design allows water to drain from the surface, preventing slips due to puddles on the playground.

Asking the right questions and making the right choice is the first step toward helping America raise the grade on the safety of our playgrounds.



ABOUT THE AUTHOR

Jim Dobmeier is president of Surface America. For more information, visit www.surfaceamerica.com.