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  1. #1

    Temporary flex duct repair???

    I have a house where i have a few flex ducts that have some holes in them and i cant afford to replace them right away. i was looking for some tips or ideas on how to fix them until i can afford the new ducts. All help is welcomed....thanks!

  2. #2
    Join Date
    Aug 2002
    Location
    Office and warehouse in both Crystal River & New Port Richey ,FL
    Posts
    18,836
    Foil type duct tape shoukld do it.
    Mastic sealer may help.

    Flex has an inner liner that should be air tight,then insulation,then the outer jacket/vapor barrier,that should be sealed.

    Where and what type leaks,holes ,gaps,etc., do you have?Can you post pics??

  3. #3
    No, no pictures sorry...its for a rental i have and the problem was i think rats might of chewed a few holes in it....nothing to major just some small holes here and there....i just need a good temporary fix to cover the holes and still have good air flow.....i just want the best thing i can do to help it out for now until i can replace it before summer

  4. #4
    Join Date
    Mar 2007
    Location
    NW AR
    Posts
    2,475
    Tape.

  5. #5
    Is there a special kind of tape

  6. #6
    Join Date
    Aug 2002
    Location
    Office and warehouse in both Crystal River & New Port Richey ,FL
    Posts
    18,836
    You need to tape the inner liner as well as the outer jacket if there are any holes in the inner liner.

  7. #7
    Join Date
    Nov 2007
    Location
    Oregon
    Posts
    39
    Quote Originally Posted by desertyodaboy View Post
    No, no pictures sorry...its for a rental i have and the problem was i think rats might of chewed a few holes in it....nothing to major just some small holes here and there....i just need a good temporary fix to cover the holes and still have good air flow.....i just want the best thing i can do to help it out for now until i can replace it before summer
    Quick temporary fix ‘till you can replace it:

    Crawl under the house and put your finger in each hole. If you can get your finger inside the duct, or can feel air escaping when the system is on, go on to section “B.”

    Plan A

    If the holes are only in the insulation, then don’t sweat it. There will be no harm to your airflow, just a little (tiny) loss of heat because of the hole in the insulation. If you really feel the need, tape over the hole with foil tape or mastic tape. Don’t use Duct Tape unless you plan to rip out and replace the flex in the next week. Duct tape just won’t hold up for very long.

    Plan B

    Ideal Solution: Disconnect each section of flex duct and apply mastic tape to both the inside and outside of each hole.

    Less than Ideal Solution: Remove a little bit of the insulation from the damaged area of flex duct, and apply foil or mastic tape to the outside of the inner liner. Then use additional tape to hold the insulation in place.

    Hope this helps.

    Glenn

  8. #8
    Join Date
    Nov 2007
    Location
    Gold Coast, Queensland, Australia
    Posts
    14
    As above, tape will fix it.

    Dont forget to put rat bait out to prevent further damage.

    Here in the area I live, there has been reports of rats also chewing through electrical insulation and causing the odd house fire.

    Hoo roo!
    Fridgy

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