Home built vs Mass produced question

[Everyroadleadshome]

. With RV roof air conditioners weighing in the neighborhood of 100 lbs, you would want to insure the roof was beefed up enough to handle it, but sounds like a good way to go.

With the better cargo trailer companies, if they know you are going to mount a rooftop air conditioner, they can put double roof supports on either side of it to handle the weight.  

     I was planning on getting a cargo trailer with a roof that can be walked on.