A commercial building is undergoing a renovation, and the existing floor insulation is inadequate. What is the minimum R-value of floor insulation required for the occupied space according to the 2021 IBC?
- AR-19
- R-25
- CR-30
- DR-35
Exam tip
Always check the specific R-value requirements for floor insulation in occupied spaces.
Why B is correct
According to Section 806.1.1 of the 2021 IBC, the minimum R-value of floor insulation for occupied spaces is R-25. Options A, C, and D are not the minimum required R-value.
