A low$-$rise storage facility $($low$-$importance structure$)$ is located in an area of St$.$ Catherine$$s$,$

Ontario which is considered to represent rough terrain. The main roof structure consisted of steel

roof beams which run perpendicular to the roof peak $($refer to figure below$).$ The steel frames

are spaced every $5\mathrm{.}0$ metres. The snow and dead loads $($incl$.$ self$-$weight$)$ have already been calculated and shown in the figure below.