Interpretation #9167
Published October 16, 2025
Original Request
- Code Version
- 2023
- Code
- ENERGY
- Code Description
- Chapter
- 4
- Section
- C402.5.7
- Topic
- Vestibules
Question
Is it the intent of C402.5.7, exception number 1, to include 1A* and 2A* (Moist, warm-humid locations)?
Answer Published 10/13/2025 at 7:25 AM
No that is not the intent of the code. C402.5.7 excludes the need of vestibules in climate zones 1A and 2A.
Commentary
None.