Yes, you can use metal sheets to replace asphalt shingles on your roof. Metal roofing is a durable and weather-resistant alternative to asphalt shingles. It offers benefits such as longevity, energy efficiency, and low maintenance. However, it's essential to consider the weight of metal sheets compared to shingles, as it may require structural reinforcement. Additionally, proper installation by a professional is crucial to ensure the roof's integrity and to maximize the benefits of metal roofing.