Claude Thomson is a former Army reservist who now works as a roofer and leading hand at Weber Roofing, and has built a second platform as That Sober Tradie, a voice for healthier habits and culture across the trades. Here, Claude shares 5 leadership lessons for trade supervisors: earning respect the hard way, understanding your team as individuals, managing your own energy, sobriety and performance in the trades, and being open about mental health as a leader.