Now that your roof is on and rough in plumbing is done its time to dry in the house. Dry in consist of installing windows and exterior doors. It must be done before the electrical rough in can be started. Normally it is the Framers job to dry in the house. Its always a good idea to hold off on siding until your outside electrical fixtures all installed. This makes for a much cleaner and tighter fit for your electrical boxes. The dry in process can be started before or after the plumbers rough in. When framer is installing windows make sure they use flashing tape. You can buy it much cheaper on Amazon. Also this means you have had to pick your windows out. I chose Ply-gem windows because the price was good and they seemed like a good product. I have a double slider that I was getting very high bids on. Ply-Gem was substantially less on this door. For all my glass windows and doors I spent the extra money to have argon gas for insulation and another to block UV rays. The best part was Ply-Gem sent an estimator to house to measure all windows and create order. I recommend using a company that will do this for you. This way its on them if a window is the wrong size. Also there are certain requirements for areas that need tempered glass. If you do not know all the codes it may cost you some money and time replacing the window. Same with exterior doors. It makes sense to order all your doors from the same company. Have an estimator come to house and measure all openings for doors. Have them only deliver your exterior doors at this time. Exterior doors that connect to a garage must be fire rated. So its a good idea to leave the specs and measurements to the pros. Depending on upstairs access you may want to pick a large window that you temporarily install. The drywall company may want to deliver and drop some of the drywall through a large window instead of carrying upstairs. Now that your house has windows, doors and roof installed it is considered dried in. You now can continue the process of roughing in utilities.