The #100 Snow Guard Shoe is used for flat metal roof surfaces. Affordable protection for your gutter, foundation or shrubbery. Ideal for mounting to flat metal roof panels. Stainless steel offers no corrosion problems or stains and is suitable for paint to match your roof. The copper guard can be soldered or fastened to copper roof panels. These guards provide 8.75 square inches of stopping area. 1" x 2" flat mounting area.