Interlocking zip or tongue-and-groove tiles?

When considering rubber flooring for your playground, sports ground or terrace, usually one has to choose between tiles with profiled or non-profiled edges. One thing is sure: for above-mentioned areas, it is always better to choose a profiled tile.

 

Both connection systems, the interlocking zip and the tongue and groove are advantageous. Not only do they help with the installation but, more importantly, reduce problems such as tile shifting, shrinking, cupping, or open joints. Non-profiled rubber tiles belonging to FS series are cheaper but even careful installation with edging and glueing won’t completely eliminate these problems. Continue reading

Critical fall height on the playground

Critical fall heights for Warco safety tiles

Critical fall height is the maximal height from which a child might fall on the playground. See below which safety tile you should choose for your play area.

Max. fall height Suitable safety tile
110 cm NF30 or TZ30 (30 mm thick)
110 cm FS30 (35 mm thick)
150 cm NF40 or TZ40 (40 mm thick)
170 cm FS50 (50 mm thick)
240 cm FS80 (80 mm thick)
300 cm FS10 (100 mm thick)

These numbers apply to the safety tiles made of polyurethane-bonded rubber granulate by German manufacturer WARCO. Certified critical fall heights depend not only on the tile thickness but also on the granulate type, connection and underside profile, hence different values for apparently similar tiles.