Rohr alterung

grabcad

Aged roofs In this given text, the phrase "Rohr alterung" has been translated to English as "aged roofs." It seems like it could be referring to old or deteriorating roofs that may need repair or replacement. The term "rohr" in German can also mean pipe, but without further context, it's difficult to determine if that is the intended meaning here. Regardless, the focus appears to be on aged roofs.