How much weight will the roof panel support if weight spread evenly? I have rails, but don't want to pay for crossbars. Thinking of getting roof top cargo bag about 4 feet long and wedging it between rails and tying down. Would probably have total of 100-150 lbs.
Id say you should be ok on normal roads I wouldn't carry much more then that tho ... and if your off road I wouldn't go more then 100lbs. Most roof rack boxes are good to about 100lbs / 110lbs so 150 i think might be pushing it