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What is this stuff in my attic?

| Posted in General Discussion on April 26, 1999 05:27am

*
Yup, that’s what I’d do. Fred would too.

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  1. Guest_ | Apr 30, 1999 05:00am | #11

    *
    I have aprox. 3 1/2 " of fiberglass, (I think) wrapped all the way around in some type of black paper. Not like tarpaper, more like the kraft facing on modern fiberglass batts.
    On top of that is blown in white stuff, + ~ - 6" deep. It resembles wadds of cotton, or if you have ever seen a product called Never- Dull used to polish aluminum it also resembles that. Is this also fiberglass?
    The house is roughly 45 years old and this is most likely original. I have been in a neighbors attic and it is set up the same way. Some of it has been wet in the past and is matted down even though it has since dried out.
    I will be repairing some plywood that is rotted out along the gutters,(maybe all the plywood?) and having a new roof put on. My thinking is wile I am at it I should:
    1) Clean out ALL of this old stuff,
    2) Foam and seal all penetrations into the attic
    3) Put down fresh f.g. batts and blow in cells over top?
    4) Skip the f.g. and just use cells? This is my own house, so I don't mind extra work as long as I get it rite the first time. A little over kill can be a good thing. HELP!!! Bill

    1. Guest_ | Apr 22, 1999 05:33pm | #1

      *My vote is seal all the holes rake back any of the old insulation that you can without voids and cover it up with a foot or more of cells.

      1. Guest_ | Apr 26, 1999 12:03am | #2

        *The stuff with black backing is probably rockwool. I don't know what the white stuff is. Skip the F.G., blow in cells after you seal it up.Dan

        1. Guest_ | Apr 26, 1999 02:15am | #3

          *I would have Fred L tell me how to take of all...He'll be back around soon I would think...The archives say to foam seal all air passages into attic, clean up a bit and blow a blanket of Home Depot cellulose in with their free to use blower. Lots of fun, you'll need a dust mask or two, and the ability to learn quickly what you are doing.Near the stream,J

          1. Kai_Millyard | Apr 26, 1999 05:27am | #4

            *Yup, that's what I'd do. Fred would too.

          2. Guest_ | Apr 26, 1999 07:15pm | #5

            *Jack,The Home Depot around here doesn't even know what cellulose is....BummerThere are only two subs within 75 miles that do cellulose. If I was any younger, I would be the third.Ron

          3. Guest_ | Apr 27, 1999 07:14am | #6

            *I think its in the HD catalog - so they should be able to order it - but that of course leaves you without a free loaner blower. Hmmmmm....bummer.

          4. Guest_ | Apr 28, 1999 02:36am | #7

            *The Lowes Home Center accross the street from my local Home Depot has cells and the blower. My question is which kind of blower allows dense packing? I remember a post from a couple of months ago on different types but can't remember which was good and which was junk...Dan

          5. Guest_ | Apr 28, 1999 07:37pm | #8

            *No Lowes out here...................more Bummer

          6. Guest_ | Apr 29, 1999 01:14am | #9

            *Its not so much which kind, its just easier with one that has a damper or gate. My first one was from HD - Predator I think was name but not sure (tall, round, aluminum base, plastic top) didn't have a gate. _ cut carboard to cut out all cells and then cut away and tested until I had a lean mix - a few cells to lots of air. You want high speed, lots of air, and the cells to literalyy fly out the end so they pack. Without gate the cells kind of "plop" out the tube - sort of spilling like a bubble fouantain rather than squirting out like a hose with your fingere over the end. Now I see newer ones at HD here - Force One I think - with a gate to make for a leaner mix.

          7. Guest_ | Apr 29, 1999 02:06am | #10

            *The gate. I'll have a look.Thanks.

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