*2.1. The Building*

The investigated building is a multi¬purpose sports center located at Jøa, an island in the municipality of Namsos in Norway. It is located at 64.6 N, 11.2 E, 65 m above mean average sea level. It is defined as part of the Marine West Coast climate zone according to the climate zone definition of Köppen and Geiger [42]. The sport center was commissioned in autumn 2016 and contains several facilities besides the swimming pool facility, such as a sports hall, a shooting range, a library, a café, a gym and an outdoor ice rink. Figure 3 shows a photograph of the north-oriented façade for the swimming hall. The swimming hall has a usable area of 266 m² (13.7 m × 9.43 m), including the 8.5 m × 12.5 m swimming pool. Key quantities are presented in Appendix B. This paper investigates only the part of the building with the swimming facilities.

**Figure 3.** The northern façade of the building.
