Building codes typically address membrane structures with a life of 180 days or more, whereas fire codes address those with life expectancy of fewer than how many days?

Building codes typically address membrane structures with a life of 180 days or more, whereas fire codes address those with life expectancy of fewer than how many days?

• A. 90
• B. 120
• C. 180
• D. 365

Answer: (C)

The concept being tested is the duration threshold used to decide whether a membrane structure falls under building codes or fire codes. Building codes cover membrane structures with a life of 180 days or more, while fire codes cover those with a shorter life expectancy. So the dividing line is 180 days, meaning the question asks for the duration fewer than which fire codes apply. If the threshold were 90 or 120 days, more structures would fall under fire code provisions; if it were 365 days, most membrane structures would be treated under building codes. The standard dividing point is 180 days.

The concept being tested is the duration threshold used to decide whether a membrane structure falls under building codes or fire codes. Building codes cover membrane structures with a life of 180 days or more, while fire codes cover those with a shorter life expectancy. So the dividing line is 180 days, meaning the question asks for the duration fewer than which fire codes apply. If the threshold were 90 or 120 days, more structures would fall under fire code provisions; if it were 365 days, most membrane structures would be treated under building codes. The standard dividing point is 180 days.