Ive got a question if anyone can help. Looking ahead, i plan to cover the shop in steel sheet metal above the brick wainscot. Being that i am planing on a charcoal shingled roof, i need soffit vents. Do they make perforated steel i can use for this? My soffit will need to match the bronze steel siding i have planned. I guess i could use aluminum if i could find it, but its starting to get scarce with all the vinyl these days. Aluminum and Steel dont get along very well either. Raw steel and raw aluminum will rot each other out if left in the weather. Is this something to consider or am I being over cautious?