Many commercial owners, as well as residential property owners, are recognizing the benefits of energy-efficient, eco-friendly metal roofing. Benefits of metal roofing include durability, energy efficiency as well as weather protection. Metal shingles also can provide you with the look of tile, shakes, and shingles. Holt Roofing Company offers both FirestoneĀ® and DMIĀ® products and warranties for metal panel systems.