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Attic Duct Insulation Repair and Sealing – Attics are out of sight and out of mind but inspecting them from time to time could provide for significant savings on your heating and cooling bills. Visit http://www.johnnyonenergy.com or video link: http://www.youtube.com/watch?v=Cc9EMb8E8yI&list=UUhZU9wdYDScmnZk4R8rsn0g&index=1&feature=plcp


  • pisspee73 August 12, 2011 at 9:03 am

    First I love your channel many great videos !! Why didn’t you rip that
    insulation the rest of the way off and mastic seal all the joints and leaks
    ?? Didn’t you have to fix this because the tape failed. The tape you just
    put on it will also fail sooner or later. I would’ve used panduit straps (
    large cable ties) other than that great job probably saved the home owner
    big time

  • allen12231 November 5, 2011 at 1:39 am

    Johnny, loved your video. You really explained well and gave great details
    on what I should expect when my air duct repair man comes tommorrow.

  • Nhoj Pekowski February 13, 2012 at 4:56 am

    If you’re feeling air escaping, I’m not sure sealing the insulation without
    sealing the actual duct joints is going to solve the problem. I have the
    exact same issue, but I think I am going to be ripping off all the old
    insulation and sealing the duct joints first.

  • mysnellvilleblog August 4, 2012 at 12:47 pm

    Thank you so much. I need to tape mine and now I know how to do it right
    thanks to you!

  • Caelidh November 26, 2012 at 2:57 pm

    we just had new ductwork moved to the attic (from our crawlspace) with the
    idea that it would improve air quality. However we seem to have MORE or the
    same amount of air quality issues. Possibly that the ducts were
    contaminated with dust and fiberglass before installation and not sealed
    properly from the beginning (we are trying to redo the work ourselves). but
    we have a ton of dust and particulates now being blown around our house
    even with our huge filter system! ? Any solutions?

  • Caelidh November 26, 2012 at 2:59 pm

    we thought we were doing a good thing and even got something like an R8
    value flexible ductwork. It does the work.. but we wonder how long, if
    ever, will the dust and fiberglass (from only being open a day or two) will
    keep being an issue!? We moved it because we had problems with mold and
    mice in our crawlspace and thought it would be cleaner and easier to
    maintain from above.. I guess we messed up.

  • John Pitek November 26, 2012 at 3:41 pm

    Do you have a single filter on the cold air returns that is at the furance
    or are there multiple filters at each cold air return within the room? In
    either case those filters should be getting dirrty quickly if the dust and
    fiber are on the cold air return side, where the air is being taken from
    the room and sent back to the furnace. They are typically on the ceiling or
    high on the wall to keep the air circulating.

  • John Pitek November 26, 2012 at 3:45 pm

    If the problem is on the the other side of the filter in that a lot of
    material was in these ducts when installed then there is nothing to keep it
    from blowing back into the house. I think your only option is to have a
    duct cleaning company clean the new ducts from the air outlets in. Attics
    have a lot of dust and fibers in them so if the installers were careless
    they may have introduced it to your duct work.

  • Caelidh November 26, 2012 at 4:54 pm

    that is entirely possible and unfortunate. We have a 3 stage filter. One of
    the filters is like 4 inches thick. Plus we have a humidifier (which we
    don’t believe is working effectively and blows dust as well..? We added
    some filters to our supply vents, and some we used tack cloth to ensure any
    insulation would be caught. My partner exacerbated his health issues by
    trying to remeditate the work the installers should have done!

  • Caelidh November 26, 2012 at 4:55 pm

    question… is will the fiberglass contamination eventually work it’s way
    out of our supply lines? We understand that you can’t very effectively
    clean flexible duct work and it may damage the ducts themselves, causing
    further problems. ?

  • Caelidh November 26, 2012 at 4:57 pm

    I don’t think my partner put filters on the returns.. just the supply
    lines, as we believed that the filter at th efurnace would catch any
    particulates.. but I have read that they are not effective at catching

  • Caelidh November 26, 2012 at 4:59 pm

    our installers were definately sloppy.. They had to get up into the attic
    via our bedroom and while we tried to cover everything, they kept tracking
    more and more through the house and every night my partner had to clean and
    vaccuum. It was a real pain! We thought they knew what they were doing…
    guess not.

  • Johnny on Energy November 28, 2012 at 7:28 pm

    If the ducts got contaminated with dust and fiberglass from cutting them it
    would hopefully settle out over time. There shouldn’t be an ulimited supply
    of it in the ducts. Other than redoing it section by section, and not
    cuasing the same issue again, there aren’t a lot of options. I’d give it
    some time to see if it does clear itself out. The mess isn’t fun.

  • rays910 February 3, 2013 at 3:38 am

    just got a new heat pump last year master bedroom is warm but rest of house
    is cold living room and kitchen has high ceiling but other 2 bedrooms are
    cold to what could be the problem

  • Rick Glock March 4, 2013 at 10:56 am

    Does the metal duct work have to be sealed around the joints before you put
    insulation on. My insulation is wet.

  • Johnny on Energy March 6, 2013 at 2:49 am

    If you’re replacing the insulation, it’s definitely a good idea to make
    sure that all of the joints are sealed as air leaks represent heating and
    ac loss that isn’t getting into your home. The average home losses 30% of
    its heating and cooling through these leaks. I had the chance to interview
    the folks at Aeroseal which seals your ducts, throughout your home from the
    inside. I put the link to Aeroseal in this videos description since I
    couldn’t put it here.

  • Johnny on Energy March 6, 2013 at 2:52 am

    When you replace the insulation on your ducts be sure to not compress it.
    It’s the air trapped in the material that provides the insulation and if
    you compress it you lose the R-value so don’t use any straps or tie wraps
    to tighten it.

  • mdyyyy May 24, 2013 at 12:00 am

    It could be multiple things: 1) Flow of supply vents vs. cubic feet of room
    and the square ft of outside walls and windows. 2) Leaky/disconnected
    ducts. 3) Uninsulated ducts. 4) No path for air to escape room, if this is
    the case, you can install a through-wall vent, a jump duct and/or cut the
    bottom of the door (less effective but easier). To test for #4, leave the
    door open and see if it stays just as cool as other rooms.

  • DOLRED April 24, 2014 at 3:35 am

    A DIYer has the ability to pick a cloudy, rainy day to play attic worker
    (Such as myself). I have some attic duct issues I need to fix. If you
    stuff more insulation into an attic like shown, please install a ridgevent
    system on the roof and make sure there are sufficient soffit vents. The
    triangle vent in the end wall tells me there are likely no other vents in
    that attic. 

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