What is the minimum lintel depth in inches?

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Prepare for the NFPA 13R: Sprinkler Systems for Low-Rise Residences Test. Utilize flashcards, multiple choice questions, and detailed explanations to excel. Ace your exam with confidence!

Multiple Choice

What is the minimum lintel depth in inches?

The minimum lintel depth is eight inches. This requirement ensures there’s enough space above openings in masonry walls for sprinkler head clearance and for the spray pattern to reach the area being protected without being blocked by the lintel. It also provides adequate room for installing and supporting the masonry above the opening without compromising sprinkler function. A shallower lintel could interfere with sprinkler spray and coverage, while deeper depths exceed what NFPA 13R requires and aren’t necessary for the intended protection.

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