Which type of pipe is required for the vent stack of a water closet in a residential building?
- APVC Schedule 40
- BPVC Schedule 80
- CPVC Schedule 40
- DCPVC Schedule 80
Exam tip
Remember the specific requirements for vent stack materials to ensure compliance with the code.
Why C is correct
Section R310.2.1 of the 2024 International Residential Code specifies that the vent stack for a water closet must be made of CPVC Schedule 40. This material is suitable for hot and cold water applications and is durable.