How should small architectural features be treated in sprinkler design?

• A. They should be ignored if small.
• B. They should be treated as obstructions with reduced water.
• C. They should always require a dedicated sprinkler.
• D. They should be evaluated for potential additional sprinkler needs.

Answer: (D)

In sprinkler design for low-rise residences, small architectural features must be evaluated for their impact on water distribution and coverage. You don’t simply ignore them, nor automatically treat them as things that reduce water flow. Instead, assess whether these features create areas that aren’t adequately protected or require more hydraulic demand. If a feature could cause a coverage gap or alter spray patterns, you determine whether adding additional sprinklers is needed to maintain the required protection. Some features may be fully covered by the existing layout, while others may necessitate an extra sprinkler or a different arrangement. This targeted evaluation keeps protection consistent without over- or under-sprinkling.