metal shingles cost per square
1 Copper is the most expensive metal at $11-$12 a square foot just for the roofing material; with installation it can run $15-$18 and up per square foot, or $25,500-$39,600 for a basic single-story ranch-style house, with the price going up for complex installation work.ypical costs: 1  Installing interlocking steel shingles starts around $3-$7.50 a square foot (for labor and materials), or about $5,100-$16,500 for professional installation on a one-story ranch-style house with a gently sloping roof of 1,700-2,100 square feet.