Short answer: Yes, you can!
The insulation product we use on roof installation has a compressive strength of: 40-55 pounds per square inch (psi).
Below is a video showing a Ford F350, which weighs anywhere from 2,708 to 3,334 kg. (5970- 7350 pounds), driving on a spray foam roof parkade installed by Urecoat. This action is not recommended and was demonstrated by professionals for an educational purpose.
How Strong is Spray Foam? Spray Foam Roof Parkade. – YouTube
For more technical information on our spray foam insulation product visit the following BASF link.
SKYTITE® closed-cell spray foam roofing… | BASF SPF for Contractors
Learn more about the roofing products we use.