Q. Sandy ripped about a square foot of shingles off our roof. A roofer said we need a new roof. His reasoning was that shingles were curling at the bottom. He also noticed our shingles are light green, making a matching patch impossible, because light green has not been made for a while. We have lived here for 14 years, so they are older than that. How long should shingles last? Will a patch work for a few years? What’s the cost for a new roof? We were quoted $6,300.