You did it all wrong. You put a zip tie on collar. Tape it and then mastic it. Then you pull insulation back over, zip tie it again and then tape and mastic it a second time. Now your flex duct will be sealed properly and will not leak like the shit work you just did.
You did it all wrong. You put a zip tie on collar. Tape it and then mastic it. Then you pull insulation back over, zip tie it again and then tape and mastic it a second time. Now your flex duct will be sealed properly and will not leak like the shit work you just did.
Is it wrong to tape the liner, then add the zip, and THEN the mastic before putting insulation back over?