What do I do when inner liner torn during install?
Flex Duct Connections & SupportsPolished core starter — flex/manufacturer check
A torn inner liner needs to be repaired or replaced per direction before connection/cover.
Field checklist
- Stop pulling on damaged flex.
- Show the tear location.
- Ask whether repair or replacement is required.
- Do not bury the tear under insulation.
- Verify connection after repair/replacement.
Ask foreman
The inner liner tore here. Do you want this piece replaced or repaired before we connect it?
Do not
Do not hide a torn liner inside the jacket.
Why it matters
A torn liner leaks air and can shed insulation or debris into the airstream depending on the condition.
Search words: flex collar support damage