Quote:
Originally Posted by bob deluke
When I ran flex duct to the cans, I just pulled the inner liner over the can, tie wrapped it and shot a tech screw through the tie wrap into the can, about 180 degrees from each other. Duct never slipped off. I saw a lot of ductwork slip off the can even with the tie wrap installed, and taped but no tech screw. Good job by the way tidybuoy
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All of the duct cans had a 1/4" raised rib which is used for pulling the duct over and then zip tie. This way, the duct and tie cannot slip over this "speed bump. I think it will all hold together.