I would check your manuals or the website. I would say yes because if it won't support you, would you really want to be inside of it? I get on mine 3-4 times a year to clean and condition the roof, and check around the vents and stuff for cracks and tears. I just don't walk within about a foot of the air conditioner and vents, and that way I'm not putting all my weight where the seals or seams are around the A/C and vents. It might not hurt to stand right next to them, but I don't won't to take any chances and cause a leak around there. If you notice on the website they have a truck sitting on top of one of their trailers. just be careful.