Solar Roof Top in Pitch for 3d model in DWG file

this is design for Pitched Base Home. this Design is First Design that made For This Website. I am Trying to Learn Auto cad 3D Modeling.The Panels Size is L=6'6" & B=3'3" & Thickness of panel is 5 MM & the Solar Panel Name IS Silfab 370 M(SLG370M).the House size is L=100' & B=80' & Then Height Is 55'