Clinton Steel Structural Manufacturers 1066 State Route 10 W McElroy Metal, Inc. is a leading manufacturer of metal roofing, metal siding, and substructural components. McElroy's product line includes a wide variety of architectural standing seam roofing systems as well as many industrial and commercial wall and roof panels. Clinton IL Steel Structural Manufacturers Mc Elroy Metal Mill Inc www.mcelroymetal.com McElroy Metal metal panels metal roofing metal construction metal siding tin roof metal building aluminum siding metal roof steel siding metal roof system metal roofing material metal manufacturer roofing manufacturer metal roofing man McElroy Metal metal panels metal roofing metal construction metal siding tin roof metal building aluminum siding metal roof steel siding metal roof system metal roofing material metal manufacturer roofing manufacturer metal roofing man Business Reviews Mc Elroy Metal Mill Inc Testimonials