Which practice supports safe roof movement during ventilation?

• A. Running across the roof.
• B. Wearing only a helmet.
• C. Maintaining three points of contact.
• D. Climbing with hands in pockets.

Answer: (C)

Keeping three points of contact with the roof at all times is the safety principle that helps you stay stable while performing ventilation. Having two points on the surface plus a third contact point gives you a steady base so you can balance as you move, reach for tools, or adjust your position near the vent opening. On a pitched, slick, or debris-covered roof, this setup reduces the chance you’ll slip or lose control if your weight shifts, wind blows, or you test a footing. It also keeps your hands available to grip or steady yourself rather than being stuck in pockets or grabbing at air.

Running across the roof greatly increases slip risk and makes it hard to react to a misstep. Wearing only a helmet protects the head but doesn’t prevent falls. Climbing with hands in pockets eliminates your ability to grip a surface or handhold quickly. Three-point contact directly addresses balance and control, which is why it’s the best practice for safe roof movement during ventilation.