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Insulating a Metal Garage Door

bmyyou | Posted in General Discussion on May 11, 2009 09:22am

What is the best way to insulate a metal garage door (16 foot metal door for 2-car attached garage workshop) to use a portable air conditioner this Summer? The sun shines directly on the door in the late afternoon and evening. The garage is enclosed with drywall and is insulated on the ceiling and one of the walls that faces the house; the other two walls are not insulated. I’m also concerned about having to rebalance the door if I add too much weight, so is the radiant foil/bubble wrap the best way to go? I will seal the edges with weatherseal.

Thanks,
Brian
Houston, Texas

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  1. migraine | May 11, 2009 10:56pm | #1

    I've been wondering the same thing lately.  Not sure how many additional turn the springs will need.  

    I'm thinking of foil faced fiberglass duct board.  I'm not too sure of the foil face "bubble wrap"

    But as a WARNING... if you don't know how to adjust them, DON"T TOUCH THEM

    they are very dangerous.  call a door company for a service call

  2. oldbeachbum | May 11, 2009 11:07pm | #2

    foam board....either  hot glue direct or hot glue some velcro strips to door and to board......hardly any weight, quiets vibrations, won't absorb any moisture, can be removed for cleaning/repairs....inexpensive and no need to adjust door lift springs

     

    I'm not flippin' you off.........just counting cubits

    1. bmyyou | May 12, 2009 01:25am | #5

      What was the total thickness used and how was it arranged (which side of the foil faced into the room)?
      thanks

      1. oldbeachbum | May 12, 2009 02:07am | #7

        I had some surplus 1" sheets of the blue/no foil and doubled them to 2"

         

        Our winters are mild, the rest of the garage is 6" walls to r19, I believe and the ceilings are r33.  It just added a touch more at the door (that are 1"+, Alum. clad and foam filled) 

        I'm not flippin' you off.........just counting cubits

  3. parrothead | May 11, 2009 11:23pm | #3

    I used the pink foamboard with the foil faced bubblewrap over that, it worked really well. It did add enough weight that I had to get the door adjusted. The door adjustment cost me $25.

    We are the people our parents warned us about. J. Buffett
    1. bmyyou | May 12, 2009 01:27am | #6

      what was the total thickness? The previous poster said it didn't affect the weight so I'm confused as to how much foam and type is needed and how to configure it?

  4. WayneL5 | May 12, 2009 12:55am | #4

    The foil faced bubble wrap is useless.  The company that promoted it is in trouble with the law now for false claims.

  5. parrothead | May 12, 2009 02:14pm | #8

    I used 1 1/2" , it was a double door, so it added maybe 15 pounds but that was enough to stop the door from rising using a garage using the garage door opener. like one of the other posters said, if you don't have the tools and don't know how to tighten them don't mess with them, it is not worth the $25.

    We are the people our parents warned us about. J. Buffett
  6. DanH | May 12, 2009 02:20pm | #9

    How often do you have to open the door? If not very often you might consider building a removable (sectioned) wall on the outside. Better seal and no worries about unbalancing the door.

    The modern conservative is engaged in one of man's oldest exercises in moral philosophy; that is, the search for a superior moral justification for selfishness. -John Kenneth Galbraith
  7. Danno | May 12, 2009 02:38pm | #10

    Is there any way to keep the sun from hitting it in the first place? It sounds like it faces west? Low sun in afternoon/evening is harder to block than overhead sun. If you could put up a pergola or vertically-slatted screen or fence, that might work. I assume it is being used, so growing vines on it would not work.

    1. bmyyou | May 12, 2009 03:54pm | #11

      The garage is attached to the house and cars are not parked in it but it does have our kid's bikes and toys in it so I would rather be able to open it; growing vines would not work.

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