Car Port,
Garage, Building,
unless whatever you install, there must be 1/2 inch between real body and Cover...
and what about your car/truck... its called insurance.
what about New car lots. trucks.... a few years ago a Chevy car lot had 3 million in hail damage in 1 afternoon.
anything with thin processed Skin (metal) steel/aluminum. then windshields. formed plastics... etc.
and the reason some trailers are skinned with a fiberglass type ... much better for this kind of issue....
fyi, the plastic things on our trailer roofs will only last 10 years in the Sun... Vents/AC cover/Refreg vent/cover. 10 years...