Which option accurately describes roof drains according to the guidance?

• A. They are left car sealed open
• B. They are left open for maintenance
• C. They are permanently sealed
• D. They are removed during cold weather

Answer: (A)

The main idea is that roof drains must be kept open so water can drain away instead of pooling on the roof. When a roof drain is left open, water can flow out freely, which prevents standing water, ice buildup, and the potential damage that can come from back pressure or leaks. Keeping drains open also makes it possible to inspect and clear any debris that could block drainage.

If a drain were sealed, water would have nowhere to go. It could back up, cause leaks, structural damage, or ice problems in cold weather. Removing a drain or leaving it permanently sealed would defeat the drain’s purpose entirely, leaving the roof vulnerable to water damage.