The average cost for a 3 tab asphalt shingle roof replacement costs anywhere from $4,286 to $6,429 on a single story 1,800 sq. ft home.Total replacement costs can vary depending on the slope, pitch, and size of your roof. Asphalt roofing materials alone will cost you around $0.85¢ to $1.50 per sq. foot or $85 to $150 per square of asphalt shingle roofing materials.