What kind of roost do you have for your birds? Even a couple inches off the floor will get them out of shavings that are wet. I have seen closet bars used as perches, as well as strudy branches from downed trees, but we used two by fours, and our birds seem to love them. Just remeber, chickens are not helicopters, they need to be able to jump from shelf to shelf! so if you angle them, it also keeps them from pooping on each other at night....
Heat also rises, so if your birds can get up higher, they will get warmer....
Also, we put our waterer up on a concrete block, so its at head level, but they cant get thier feet into it. Oh, and one last thought, if your waterers are not perfectly level, they will empty out onto the floor all by themselves! I learned that the hard way with a 7 gallon waterer.
Now with a raised waterer, and by aiming one of the heat lights at its base, I can keep my waterer from icing up, but I still have to open the bottom valve by hand twice a day, or it empties out over a long time....
Good Luck, I hope you can make something work.