Condensation in the pool room

Condensation and the aquatic room

The room or shed in which the pool is located is much more prone to condensation than any other room in the house. Indeed, during the inter-seasons and in winter in particular, the air in the aquatic area is warmer than the outside air. Furthermore, by the very nature of the place, the air is saturated with humidity. All the elements are brought together so that condensation in indoor swimming pools takes hold over the long term. If nothing is done to limit or control the level of humidity in the air, it can quickly become a recurring problem for the structure of the building and the health of bathers.

What does condensation look like in the indoor pool?

The harms of humidity in the swimming pool room

Indeed, it will first of all be visible on the glass walls in the form of mist, nothing too bad except for the traces which remain visible; the textile is damp and ends up having an odor, droplets form on the walls and leave puddles on the floor or peel off the coating; the ceilings deteriorate, damp spots form and then mold appears; the atmosphere is moist and a feeling of freshness is felt. In addition, condensation has harmful effects on the health and well-being of swimmers. Consequences are also observed on swimming pool equipment: unexplained breakdowns, premature deterioration.

How to fight indoor pool condensation?

Condensation is a phenomenon that should not be ignored or neglected. If no solution to fight against condensation has been put in place or proves to be insufficient during the construction of the pool in a room of the house, in the veranda... or if the glass walls of your shelter are tarnished by drips water due to condensation: we must act.

There are simple solutions: cover the pool when it is not in use, ventilate the room regularly and above all put in place essential, suitable and efficient such as a swimming pool heat pump and a dehumidifier. This equipment will largely be able to solve the problem of condensation in the indoor swimming pool and avoid the programmed deterioration of the decoration, the structure of the building, the equipment...


Condensation in the indoor swimming pool is not not an inevitability. It is possible to fight effectively and sustainably against this natural but destructive phenomenon. Solutions are available and essential. Thinking about it when designing the aquatic room is an asset and must be a priority.

Knowing how condensation is created in the pool area and knowing the effects of condensation in the aquatic area are essential to fully understand this phenomenon and thus combat it effectively. It will also be necessary to take care to regularly measure the hygrometry of the indoor swimming pool in order to reduce the risk of condensation.