Every contracting experience is made up of two components. The actual technical part of the job, and the service or psychological part of the experience.
If one of my children was graduating from college today, and he or she was interested in a career in roofing, I might likewise give them one word of advice: Metal.
When I first got involved in the roofing industry in the 1980s, one of the most important events for researchers like myself was a series of technical conferences co-sponsored by the National Roofing Contractors Association (NRCA) and the National Institute of Standards and Technology (NIST).