This is also very important to check when considering a reliable roofing contractor. Do they have a full time, salaried, installation expert, project manager, and quality control employee? Or, does the salesperson selling you the job “quality check” the work once complete? If this is stated by a salesperson, it is a red flag.
To become a roofing expert, for all of the various types of asphalt roofing products, metal roofing products, composite roofing products, and flat roofing products, it takes years of experience and hands on installation experience. Does the salesperson have experience with installation, and can you ask them the technical roofing questions? The salesperson is paid for your job once it is sold. They are not paid to make sure the installation is completed according to manufacturer specifications, if they even know what the specifications are.
This of course is not true of every salesperson, but it is something to consider when asking them questions. Do they have a full-time, salaried, project and quality control check manager? If so, can they prove it? If they can, this may definitely be a roofing company worth considering for your roofing project.