Interior upgrades, how to attach to roof on inside

And if you DO put screws into the cross members, Remember that if you walk or kneel around on the roof right over that screw it will likely show up as a dent. Hopefully you don't stand right next to it or it might just pop through the roof. If your roof is completely covered with an insulating ceiling liner package" you absolutely should pull some down and take a look so you can see just what the cross members look like or better yet, find a van without the liner and take a quick look. Better to know what you are dealing with for thickness. And there's a BUNCH of holes already in the cross members so don't be surprised if a screw doesn't hit metal and just falls back out. Unless you go through to the roof!!!! DDT