We saw this Oklahoma roofing company truck filling up with gasoline at the famous tourist trap Cline Corners, NM on I40.
The name of the business is Preferred Roofing Foam and Coating Specialist. They have a Comm. Endorsement where Comm. has to mean commercial. This is an official stamp of approval with regard to the quality and professionalism of their work. My uncle is a commerically endorsed carpenter with specialization in electronics. He makes some good money.
It is not easy to pass the commercial endorsement exam in any field, so I am sure the bearded employee of Preferred Roofing is highly competent.