I have a detached garage I am trying to fix up and insulate in hopes to turn it into a workshop/home office. I am also trying to add two new windows in one of the existing walls. The construction is (probably cedar and approximately 1" thick) wood cove siding directly over 2X4 stud walls. I've searched around and found very little information on how to correctly install a new window in this type of situation. I have a couple of theories on how I might approach it, but would prefer to consult with some experts before proceeding. Because I am on a fairly strict budget, the windows will probably be 2'-8" x 4'-4" vinyl window from a Home Depot or Lowes type store. Any insight or guidance on procedures, flashing and other consideration is greatly appreciated! Thanks!