In swimming pools, unusual architecture can provide special bathing fun. However, it is not only a question of unique architecture, but also of the right construction. Because with swimming pools special conditions have to be met in the construction of the building envelope. A thermal building envelope is required, which plays a central role in addition to the system and building technology - especially on the swimming pool roof.
What requirements does a thermal building envelope in swimming pools have to meet?
Swimming pools have increased requirements - especially in the area of plant and building technology, but also in the area of building physics. The building has to be kept warm in winter and cool in summer - so that it doesn't get “too tropical” for bathing fun. In other words, the thermal building envelope is another essential concept in addition to the system technology with ventilation.
In addition, there is the fact that a swimming pool is subject to high hygric loads - i.e. a permanently increased indoor temperature combined with high humidity. The requirements for the building envelope - and especially for the swimming pool roof - are particularly high in winter. Extremely low U-values of the thermal building envelope (roof and facade construction) are therefore of great importance.
How can this be implemented and which options of the superstructures are suitable for this?
The roof structure should consist of a material on the inside (on the primary side exposed to heat and moisture) that has a good regulating effect and must not corrode under any circumstances. timber is suitable for this in combination with a structure that is free of and / or has reduced thermal bridges. Alternatively, hybrid structures with a supporting shell as a supporting structure and a suspended ceiling are also suitable for the thermal building envelope.
The swimming pool roof can then be built on top of it, depending on the requirements, with thermal insulation of almost any height and specification. In order to keep the thermal insulation at an almost perfect level, GRP halters are suitable, which are not only passivhouse certified, but also do not represent a significant thermal bridge. Depending on the requirements for summer heat insulation and sound insulation, the insulation can be tread-resistant or soft.