Alex, please be sure to have folding permission on the computers you set up to fold. Too bad about the principal not allowing it in the labs, but don't worry he will crack eventually.
After he sees there is no problems with computers folding in your office, and after you tell him about the cool benefits of folding he will want to fold at home too!
How many comps do you have in your office? And how fast are they? It is great you get to add the office computers so far.