a stell building system to build a church life enrichment center has been laying on the ground in rainy soaked weather for 5 years. is the metal any good? must the metal be ispected for severe corrosin & cracks/ ca the metal be used to stand up the metal building after years of sitting in foul weather? How must we proceded to use this metal safly? WILL CODE ENFORCEMENT APPROVE THE USE OF THIS STEEL MATERIAL?