$4\mathrm{.}2.$ Determine the design snow loads on the roof of the lower building in Example $4\mathrm{.}7$ assuming the ground snow load is equal to $80$ lb$/$ft$2(3\mathrm{.}83$ kN$/$m$2)$ instead of $39$ lb$/$ft$2(1\mathrm{.}87$ kN$/$m$2).$ Use the design data given in the example.