Roof Curb to RTU Duct Connection
Equipment Connections: RTU, AHU, VAV, Fans & Louvers🚨 STOP / VERIFYControlled condition
Core Answer
The duct connection through a roof curb has to match the RTU opening, curb adapter, gasket, and weather seal.
What to Check First
- Verify unit model
- curb adapter
- supply/return orientation
- gasket/seal
- shop drawing opening sizes.
Ask Foreman
RTU curb openings do not match cleanly. Do we verify the curb adapter/model before cutting or sealing anything?
Do Not Do This
Do not cut the curb or unit base in the field without approved direction.
Why This Matters
water leak, air leakage, wrong airflow path, crane-set delay, warranty issue
Verify against: manufacturer install instructions, curb submittal, project drawings.