• Squash Courts

Few things spoil a game of squash more than condensation. Sweating walls make it impossible to play angles successfully and if the front wall is affected, lobs start flying into the roof. Worse still, if the floor is affected, players can lose their foothold and injury can easily ensue.

Condensation problems often arise in particular weather conditions. Squash clubs that have no problem for most of the year can have an exhibition match, or the finals of a tournament, ruined by the beginning of condensation. It is no coincidence that problems proliferate when crowds congregate, and when crowds gather at a time when the external weather conditions are already conducive to condensation, the problem is heightened.

All air contains a varying degree of moisture which is usually in the form of invisible water vapour. The amount of water vapour contained in the atmosphere at any given time is measured by the relative humidity; this figure gives the percentage of water vapour present compared with the air's “saturation level" at which point water vapour becomes visible as water droplets.

The moisture level in a squash court atmosphere can be increased locally by:

Breathing: this can have considerable significance when many people congregate to watch a match. The players, through breathing and sweating, introduce into the court atmosphere seven times more moisture than a spectator. For this reason, adequate ventilation in the form of extraction fans is necessary.

Sweating: sweat generated during a match is absorbed by the atmosphere. The more sweat that is generated, the greater the amount of moisture which will be added to the ambient level in the atmosphere.

Ventilation of courts and spectator areas is essential and 4-6 air changes per hour are recommended for each court. This rate can often be obtained by use of a 315mm fan diameter placed at high level in the wall behind or in the roof above the gallery, or the back third of the court, which will draw the air across the court from the ventilation inlet holes in the 'tin'. Grass or other vegetation near the external ventilation holes should be cut, as if wet, moisture will be drawn into the court.

Elta Fans provide a wide range of ventilation products for squash courts, so for more information, please look at examples of typical products that could be used for these applications, or alternatively, please contact us to discuss you specific application requirement.