This is for a 1500 sq.ft.home ... but there are many nuances that will affect this.
Now that is of asphalt shingles. A metal roof an a same house would be $12000-18000+ depending on materials ... however... all this is treading water, because you did not provide any specifics.
He have a roofing calculator on our website where homeowners can actually estimate the cost based on their roof dimensions and details: http://www.coolflatroof.com/roofing-calculator.php
Depends what type you require for your home, is it composition- what life span you need 25, 30,40 years? Torch down type, metal roof, tiled roof? the list goes on. Your roofing contractor will be a great resource to tell you the characteristics of each roof type and the price. Good luck on your new roof!
Mark Leach | http://www.purvisroofingmaine.com/roofing.html
Mark Leach | http://www.raysroof.com/our-services/
Mark Leach | http://www.harringtonco.com/roofing-products-equipment/