The castle roof is a type of fortified structure built during the Middle Ages predominantly by the nobility or royalty. This is distinct from a palace, which is not fortified from a fortress, which was not always a residence for royalty or nobility from a pleasance which was a walled-in residence for nobility, but not adequately fortified. for more detail download the AutoCAD drawing file from our cadbull website. For more details download the CAD file from our cadbull site. This can be used by architects and engineers. Download this 2d AutoCAD drawing file.