I had a roof hole front left for 30 years, now have a side hole front left going into the second season. Already prefer the side hole. Couple reasons why. First I now can put a full tarp on the roof and in lower then minus - 20 temps we layer several tarps to create some insulation to help keep the tent warm through the night. Second is that the un-tarped area near the pipe on the roof vent on an older canvas tent will leak in time on to the stove and firewood supply.