Impact surfaces and protection zones
Newly built as well as existing playgrounds, although fitted with perfect play elements, do not guarantee safe playing without top-quality impact surfaces. Impact surfaces are designed to prevent accidents caused by a fall or hard impact from the play element. Placing the impact surface can ensure maximum safety of the game. The construction of the impact surface is not absolutely necessary for all elements we offer, if the critical drop height of the play element is less than 1 m, a well-maintained lawn is sufficient.
|MATERIAL||DESCRIPTION||MINIMUM LAYER DEPTH||MAXIMUM HEIGHT OF FALL|
|Lawn||the lawn must be well maintained in order not to lose its shock absorbing properties||-||≤ 1 m|
|Gravel (“pebbles”)||free of silt and clay particles, granularity 2-8 mm||300 mm||≤ 2 m|
|400 mm||≤ 3 m|
|Sand||free of silt and clay particles, granularity 0.2-2 mm||300 mm||≤ 2 m|
|400 mm||≤ 3 m|
|Rubber||tiles or cast floor||According to the HIC test (see EN 1177)||critical fall height according to the test (acc. to the tile thickness)|
|Grass plate||practical and money saving option, the plates are installed over lawns, underlaid with a net and locked together||23 mm||≤ 3 000 mm|
Note: 100 mm is added to the minimum depth for loose fine materials to clear unevenness caused by material transfer.
Specify overall dimensions of play elements, surface area needed for play element assembly and impact zone areas in square metres.
- ----- Protection zone; lawn is sufficient as an impact surface
- ____ Impact surface