No. In fact many folks prefer not to be home when the hammering starts!
We do not need access inside the home providing there is an outside electrical outlet available in case of bad wood or if you have chosen the option of a ridge vent system.
However, your presence does allow your contractor to answer any questions you may have regarding the process and to point out any “quirks” built into the construction of your home that may affect the appearance of your new roof and to discuss possible options to remedy or minimize these quirks.