Snow guard Shoe are ideal for mounting to corrugated or flat roof panels and affordable protection for your foundation, gutter or shrubbery. The copper guard can be soldered or fastened to copper roof panels. Stainless steel offers no corrosion problems or stains and is suitable for paint to match your roof. These guards provide 8.75 square inches of stopping area. Holes for #8 screws or rivets. Use neoprene washer screws to fasten. All roof penetrations should be sealed with adhesive sealant (SB-190).