A new asphalt shingles roof for a typical , square feet single story ranch house can range in price from $, $, installed. Across the US, a typical architectural asphalt shingle roof will cost between $. and $. per sq. ft. to install..A new roof costs $, to $, on average and varies based on the type of roof and several other factors. Learn what determines the price of a new roof..HomeAdvisor’s Roofing Cost Guide lists pricesociated with installing a new roof including labor and materials, as reported by HomeAdvisor customers..Roofing with synthetic slate tiles recycled rubber or plastic molded to look like slate is about $, $, for an average ranch house with a , , square foot roof or $, $, for a , square foot roof..