Slippery floor in floorball arena

Project facts

Type: Sport, retrofitting
Consultant: EQUA
Summary: Retrofitting of floorball hall prevents slippery floor.


In an existing floorball hall, the players experienced humid and slippery floor mainly in the second half of a match, when the hall was crowded with both players and spectators. The hall is heated (at 18 °C) by high temperature ceiling gas radiators. This heating is set back to 10 °C when the hall is not in use. It was obvious that the problem occurred, because the floor reacted too slowly and stayed cold while the air was heated up. To the building physicist it was clear what to do, but there was an uncertainty how extensive the correction should be. Convincing arguments were needed. 


Some extra insulation on the floor will cause that the floor surface temperature reacts quicker during heat-up periods. Measurements were done during matches and a simple, but adequate, model of the hall was built.

Simplified geometry
Simplified geometry

For example, an accurate modelling of the geometry of the hall was not important, but it was important to position the radiator correctly and to separate the floor to different parts being closer and farther away from the radiator.

position of radiator

Correct position of the radiator and floor parts with different surface temperatures

With this model it was shown how results were changed after adding an insulation layer to the floor construction.


The simulation showed that only 1-2 cm of insulation was needed to avoid the problem. It was also shown that too much of insulation could cause condensation problems at the ceiling, as the roof is only poorly insulated.

insulation result 800

Temperatures during two days (only the second with occupancy)

insulation 2cm 800

Same situation, but with 2 cm insulation on floor

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