The cost of installing an asphalt shingle roof can vary significantly based on several factors. The first major factor is the type of asphalt shingles chosen. There are three primary categories three-tab shingles, architectural shingles, and premium shingles. Three-tab shingles are the most basic and economical option, typically costing between $90 and $100 per square (a square is 100 square feet). Architectural shingles are more durable and aesthetically pleasing, often ranging from $100 to $150 per square. Premium shingles, which offer enhanced durability and an extended warranty, can cost upwards of $150 to $250 per square.