Drying room RH over 70% can make drying difficult ... your most mature plant is probably still a few weeks from being done so there is no rush on finding a drying space but when it's time to harvest it's good to be prepared ... visualize each plant hanging upside down and look around indoors to see if you have a spare closet or two ... using the grow room is popular and it can have the added benefit of slowing the grower down rather than piling one grow on top of another they have a chance to slow down and appreciate the cycle of the plant ... veg / flower / harvest / dry / cure / enjoy ....