advantages and disadvantages of metal roofing inside our campus . roof vent for enchanting roof ridge vent advantages and ridge roof vents for metal roofs. infographic – advantages of a metal roof. my third interaction with metal was my reclaimed corrugated siding i used 4 full sheets on each end but then needed to cut diagonals in the top pieces to . white metal siding house. reclaimed nation at work 91916. thecorner-7.