We have a mid century modern ranch with a typical very low sloped inverted v shape. We are wondering if it would be feasible to raise the pitch on one side of the roof to enable adding clere story windows through the center of the house. This would improve the exterior appearance and provide a lot of natural light to the home‘s interior. We are planning to do extensive renovations, including a re-roof anyway, so was wondering how much cost this would add to the project.