I want to install a fold up ceiling coat/towel hanger in my popup's ceiling. The hanger unit is designed to be installed in a popup. My question is, are any type studding materials in between the ceiling and roof? I see that the door tracking system is attached to the ceiling, but is it just in the ceiling or is there some sort of support that it's attached to. My popup is a rockwood 2318g. Some came with item installed, but mine, of course didn't. Not much weight will be hung at any one time, but still I don't want the screws being ripped out of the ceiling. Thanks joe.