A church built in 1890 in Germany was set to be restored; repair workers needed to determine how much of the zinc roofing would need to be replaced.  After inspection, they determined that the majority of the roof would need only minor repairs, and that, after 120 years, most of the zinc tiles were still in serviceable condition.  Said the author, “Two distinct but related attributes of zinc in buildings are major factors in its environmental performance: durability and recyclability.”