I experience something similar, though less severe, every time I move or obtain a new vanda. My take on it is it is adjusting to more light and less water - that is why it is throwing out those big thick roots.
If you water more, you may not lose as many leaves during the transition.
what kind of water schedule do you recommend? its about 85 in the day with 85% humidity
Could just be adjusting to it new home...give it time. If it continues to do this after it has acclimated, then you can worry- but not now. Give it a good 3-5 weeks to adjust...