Question: how much does it cost to build a mansard roof?
Answer: Mansard roofing costs vary depending on the location, materials, labor and other factors. Since a mansard roof requires a lot of materials as well as framing labor, one can expect the roof to cost anywhere from $10 to $14 per square foot. For a 1,500 square foot roof space, this is roughly $15,000 to $ 20,000.