The formula to calculate the Net Free Air (NFA) is:
\[ NFA = \frac{FP}{150} \]
Where:
Net Free Air (NFA) is a measure used in ventilation systems to determine the amount of unobstructed airflow available in an attic or other space. It is calculated by dividing the total attic floor space by 150. Proper ventilation is crucial for maintaining a healthy and energy-efficient home, as it helps to regulate temperature and moisture levels.
Let's assume the following value:
Using the formula to calculate the Net Free Air (NFA):
\[ NFA = \frac{FP}{150} = \frac{3000}{150} = 20 \text{ ft²} \]
The Net Free Air (NFA) is 20 ft².
