 Metal roofing lasts three times longer than shingles. So naturally, you would assume it would be quite a bit more expensive as well. Well, that isn't the case. The cost similarities between asphalt shingles and metal roofing are quite similar. However, the benefits of a metal roof far exceed that of a shingled roof. Palmer's Metal Mart manufactures high-quality metal panels for roofs and walls at amazing prices. Since you buy direct from the manufacturer, you save more money. Metal roofing is an investment that pays off time and time again.