Total Costs. Based on the prices listed above, a replacement roof with mid-grade materials can cost $10,000 and up. A 24 square roof with asphalt shingles and a single layer of tear-off can cost as little as $6,700, while the same roof with zinc or copper roofing can cost as much as $30,000.otal Costs. Based on the prices listed above, a replacement roof with mid-grade materials can cost $10,000 and up. A 24 square roof with asphalt shingles and a single layer of tear-off can cost as little as $6,700, while the same roof with zinc or copper roofing can cost as much as $30,000.