Course Content Expand All | Collapse All Lessons Status 1 Day 1 - Introduction, InterNACHI, Roof & Chimney Introduction InterNACHI Roof & Chimney 2 Day 2 - Roof Structure & Attic, Electrical System, Plumbing, Water Heater Roof Structure & Attic Electrical System Plumbing Water Heater 3 Day 3 - Cooling System, Structural Foundation & Crawlspace Cooling System Structural Foundation & Crawlspace
