Given: General purpose communications cabling is being extended into a multi-story building. The cable passes over the buildings of flat roof and overhang more than five feet. It terminates at a through-the-roof raceway. At least how much clearance is required above the building roof?

Given: General purpose communications cabling is being extended into a multi-story building. The cable passes over the buildings of flat roof and overhang more than five feet. It terminates at a through-the-roof raceway. At least how much clearance is required above the building roof?