An apprenticeship is not school. You don’t sit in a classroom for four years before you start earning. From your first day, you work alongside experienced journeymen on real job sites, getting paid at your apprentice wage rate while you build the skills and knowledge to advance.
The formal training component — classroom instruction and shop work at the JATC training center — runs alongside your field work. Theory and practice reinforce each other.
By the time you complete the program, you are a fully certified journeyman insulator with years of real-world experience behind you.