Shingle price per square foot may seem more affordable ... Tin roofs can last 40 to 50 years or more with the right care, whereas shingle roofs might need replacing every 15 to 20 years.

One of the most important factors when considering the cost of a new roof is your choice of roofing materials. Shingles ... a metal roof can range from $3.50 to $30 per square foot.