I actually built my house 33 yrs ago. Framed all the walls, and set them, Installed all the windows and doors, Roofed it myself. I framed the outside walls with 2X6's and used R19 insulation. Used high performance Anderson windows and sliders. Was worried about heat pumps in this area, so I used two systems, One up, one down. Took me about a year to complete the job, while I was still working everyday. Had the house appraised after I moved in. Couldn't believe how much I saved by doing it all myself....