As you may have read in my intro, I just bought two plants, both of wich i beilive are phal. I am Extremely new to orchids and while i understand the basics i am trying to figure out where they will be the happiest and healthiest with me. I live in the central florida area and have a nice screened porch(florida room). I thought that maybe they would be happy out there but I think i may have "burned" one of them. I have since brought them back into the house and am very upset that some of the ariel roots look shriveled now (too much sun?) Should i repot? I am also worried that there may be some rot as some of the roots look yellow that are residing within the pot.

Im very confused on the watering and humidity care. Atattched are some pictures of the blooms and the roots. Thank you!
Orchid Phoenix