Asphalt shingle roofs offer only one benefit, which is low installation costs. With these roof types, homeowners are left stranded with costly maintenance bills over the years. In contrast, a metal roof offers better ventilation of the roof system, less weight, no maintenance, and greater durability. Metal roofs are an excellent choice for homeowners who want to save money on their home's energy bills. A metal roof is better if you live in a hot or cold climate where asphalt shingles don't perform well, or your home needs additional protection against wind and snow loads. Over time, you will spend more on repairs or replacements to your asphalt shingle roofs, which will cost you more than a metal roof.