What do I do when not supporting flex at both ends?
Flex Duct Connections & SupportsPolished core starter — flex/manufacturer check
Support flex at both ends so neither collar carries the run weight.
Field checklist
- Check support near the duct collar.
- Check support near the boot/diffuser.
- Keep each end round and aligned.
- Add approved support near ends if needed.
- Recheck liner seal after support.
Ask foreman
This flex is not supported at both ends. Do you want supports added before ceiling close?
Do not
Do not let the collar or boot hold the weight of the flex run.
Why it matters
Unsupported ends pull loose, sag, and leak.
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