[xmonad] Termite does not work as scratchpad

Hello, I am interested in using the Termite terminal as my scratchpad but it doesn't actually work as a scratchpad and I'm wondering why. It seems unable to float. Gnome terminal has the same behavior for me and apparently Termite uses the same foundation as Gnome terminal. So I'm wondering if it is a short coming of the terminal or if there is something I can do to make it work. Has anyone got this working ? Thanks, Eric