OK need help .... please

[wavery]

Well this was the initial question!

  "I want to put a storage box on the roof of me Coleman camper. Can I just drill and bolt? Are there supports in the roof? Whats the skinny on this?
Thanks to all who can help."

  I also added the total weight would be 100# or less total  of box and contents!

  Not a single reply gave ANY indication of how the roof structure is, or the proper mounting of something (a/c as example) to the roof! All the replies have been don't do this , don't do that , assuming answers without reading weights I had posted !

 I was merely trying to determine how people mount things to the roof!!!

  Sorry I offended everyone who's general guess was that anyone who posts a question had no idea regarding trailers , towing ,  or anything mechanical!

 The next time I have a technical question I'll be sure to give my complete resume , and tecnical backround!!

 I'll just call the dealer locally maybe I can get an actual answer to my question rather than be degraded by people who apparantly don't themselves know the answer yet insist on posting useless replies!!

Asking the dealer could be a good idea.

I think that mike4947 answered your question  pretty well. Normally, you can assume that if no one answers the specifics of your question (I.E. construction of roof) it is because they are not sure of the answer. IMHO, that's a good thing. The last thing that you need is someone giving you information that is not accurate.

If you do a "simple search" through the website, you will find some very clever ideas on rooftop carriers. The one that I like the best is a modification of this:

http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=92655

I can't remember who posted it but they got aluminum angle iron and bolted it to the bottom of this carrier and extended it out to the sides of the roof. It was a very clever, lightweight, carrier.