Ringtails are housed in a drey when they are put into an aviary. In time it will become well used and sometimes rather tatty. At the time of release, therefore, make sure that the roof is waterproof either with a further covering of coconut fibre, shadecloth or artificial grass.
Ringtails always have a second entrance the opposite side from the main entrance. This is a safety measure. If, for instance a python or any predator attempts to attack them they can quickly exit from the back door.