a jade plant is to be kept damp (not soggy) until the plant has taken root. then you can just water as you would any jade plant, which is to say Water it when the soil is damp (not wet) to the touch. This should not be too often, BUT also when a jade loses leaves (usually the older leaves) it is often due to too little watering. Perhaps you are letting the soil dry out too much between waterings ?? Try watering your jade plant when the top inch of its soil is completely dry. (of course this is when you are sure your jade cuttings have grown their own roots.)
Also, since Jade plants add leaves and shoots during the summer they will need more water during this time.
I would like to see a picture of your plant- The "air roots" may well be new leaves or plantlets that a can grow when one is rooting a jade. Watch then closely, and see if they change...