 As far as a hatch is concerned, some commercial buildings do have a hatch where if an HVAC unit is on the roof, the technicians who have to work on it can go up a ladder and get access to the roof. I do not know if that was the case. I don't believe, I haven't seen any indication that there was an internal access or hatch on the roof that the access would have had to have come from the side of the building. Okay.