In the described case, how many downspouts are required at the four corners of the building?

In the described case, how many downspouts are required at the four corners of the building?

• A. 2
• B. 4
• C. 6
• D. 8

Answer: (B)

Distributing roof drainage evenly around a rectangular building requires one downspout at each corner. Placing a downspout at every corner ensures water from the gutters on each side is carried away promptly and evenly, preventing overflow on long runs and directing water away from walls and the foundation. If you used fewer than four, water from the far sides could overflow before reaching a downspout; using more than four would add unnecessary cost without added drainage benefit in a typical four-corner layout. So, the standard requirement for a four-corner building is one downspout at each corner.

Distributing roof drainage evenly around a rectangular building requires one downspout at each corner. Placing a downspout at every corner ensures water from the gutters on each side is carried away promptly and evenly, preventing overflow on long runs and directing water away from walls and the foundation. If you used fewer than four, water from the far sides could overflow before reaching a downspout; using more than four would add unnecessary cost without added drainage benefit in a typical four-corner layout. So, the standard requirement for a four-corner building is one downspout at each corner.