blackv: Bruder Klaus Chapel (02), 2007 [architect: Peter Zumthor] Photo by Christoph Engel Construction of the Bruder Klaus Field Chapel, a concrete chapel on the edge of a field in Mechernich, constructed by local farmers in honour of their patron saint, the 15th-century hermit Bruder Klaus. The chapel is made using a technique coined by Zumthor as “rammed concrete”. The farmers made up the outer walls by pouring 50cm of concrete every day to create 24 layers, varying in texture and ...