What is the stated approach to roof drains in the protocol?

• A. They are left car sealed open
• B. They are left unsealed and open
• C. They are blocked with plugs
• D. They are connected to a separate drainage system

Answer: (A)

Roof drains should be kept open and unobstructed so water and condensate can drain away freely and any trapped gases can vent. This setup prevents pooling on the roof, reduces slip and structural hazards, and avoids pressure or backflow problems in the drainage network. Blocking drains or routing them into a different system would defeat this purpose and introduce risks of overflow or cross-flow. So the recommended approach is to maintain roof drains in an open, unblocked condition as described.