Thanks for the feedback. I might just have to look into them. I currently have two small vent side doors on the back sides down low to the floor with permanent screens in them, which can be opened from the outside. But they cant be open while driving. I also have a fantastic fan on the ceiling but dont have a driving cover on it and not even sure if it would help if I did have one and ran with it open. I'm just not keen on cutting holes in the trailer body to mount the new vents but if the work them I guess it would be worth it.
