What percentage of sub floor exposure is a deficiency?

• A. 0%
• B. 5%
• C. Ten percent or greater
• D. Fifty percent

Answer: (C)

Subfloor exposure is evaluated against a threshold to determine a deficiency. In NSPIRE, the exposure becomes a deficiency when it involves 10% or more of the floor area. That means if you can see the subfloor across at least one-tenth of the floor, it counts as a deficiency. Exposure under 10% isn’t scored as a deficiency, even though any visible subfloor suggests an issue that warrants review. So the threshold that defines a deficiency is ten percent or greater. A tiny speck of exposed subfloor (below 10%) isn’t a deficiency on its own, while large exposure (like half the floor) would clearly meet and exceed the threshold.