Outdoor slate paving unites tradition, art and sustainability
![Trovet i Trondheim med fliser av skifer på bakken. Olav Trygvasson er i midten av bildet.](https://mineraskifer.no/app/uploads/2021/05/Trondheim-Torg_Offerdalskifer-belegning-uteflisDJI_0461.jpeg)
When Torvet, the market square in Trondheim, Norway, was fully renovated in the summer of 2020, almost 12,000 sqm of the city's finest outdoor space were paved in slate. There were several reasons for this. Besides aesthetic requirements and a low environmental footprint, the new civic paving would have to pass the great “iron ball test”!