Wear personal protective equipment, e.g., hard hats, safety shoes, safety glasses, gloves, masks, and earplugs at all times, and when applicable, Follow special procedures including contamination control, noise control, vibration, building systems awareness and procedures. Ability to perform duties in extreme varying temperatures, e.g., exposure to hot, cold, wet, humid, or windy conditions, on your feet, 8 to 10 hours daily up to 6 days a week.