Show 04 chicago to build all metal apartment chicago Citi chicago cago Is to have the first all metal apartment building g I 1 in n the world norla seventeen t een stories high the structure will lime hae walls ot of glass a and chromium aluminum alloy b but t three and a half inches thick or lab about out one fourth the thickness of ordinary brick buildings tie ac cording to specifications just announced the metal and non n on rusting will give the structure an exterior appearance of gleaming sliver insulation in the walls ills will give them heat resistance e equal ual to that of brick walls 30 inches thick the building is to b be electrically heated |