The exterior wall skin consisting of panels or sheets and their attachments, trim and weather sealents. Wall cladding shall conform to the physical specification and having minimum yield strength of 345 Mpa. Wall panels shall be of 26 gauge thick profiled Galvalume or Galvalume color coated steel sheeting. In case of pre-painted Galvalume panels, the exterior face is pre-painted with 1 mil. Thick factory applied polyester paint. The interior face is pre-painted with 0.5 mil thick factory applied polyester paint. Each panel shall provide one meter coverage and can be shipped in any length up to 12m.