We've been trying to make the house more "green" with every project we do.
On the list is to re-insulate the attic. I was thinking that with all of the
newspaper we constantly get, why not shred it, fireproof it and toss it up
in the attic? Isnt' that all this blown cellulose really is?
Is this a viable idea?
Too much work for too little return?
The better and cheaper and easier, in the long run, way is to send off
your old newspapers to the recycle yard and they sell it to the people who
shred it (to the right size) fire and pest treat it properly, and package
Both fiberglass and commercial cellulose are very good. Both have
advantages. I don't think there is a clear advantage of one over the other.
The air sealing abilities of cellulose outweigh the chance of a roof leak
disadvantage, in my opinion.
On Sun, 7 Nov 2004 09:32:14 -0500, "Benign Vanilla"
Ever seen old newspapers caught on the yard fence or stored in some
old basement? They become brittle and really excellent for kindling.
Figure if that is suitable as long term insulation material. If they
crumble to pieces they have little insulation value. If your area is
humid old newspapers are excellent termite food. If you have hot
spots you have a fire hazard. Try wetting the old papers too. In the
old days they used sulphur dioxide to bleach the pulp. The SO2 out
gasses and you have noxious fumes. They probably use something else
today for bleach.
Stick with fiberglass batts.
In some climates cellulose may work but if you are in the south it is pure
shit. You can't keep the moisture out of it and it rots to a grey mat.
To start with, everything northerners know about moisture barriers is exactly
backward anywhere that the A/C is on more than the heat. Unfortunately
insulation installers have not figured that out.
Lovely. For the uninitiated, this produces something
approximating rocket fuel.
Generally, people use mixtures of borax and boric acid dissolved in
water, but the ratios seem to vary all over the map, with no
particular pattern that I can determine. Boric acid also
has the advantage of being a relatively non-toxic-to-humans pesticide
and mildew inhibitor.
has one set of recipes.
Re-inventing the wheel. That is what is done in commercial stuff and
back when, Mother Earth News had articles on how to do it as a DIY
project. It is still available along with the machine to blow at any
decent lumber yard. AT A PRICE! I was quoted in the range of $400 for
a 26x26' ceiling.
Nice long thread, and some great comments. I guess I knew the answer before
I asked. I guess I'll head off to the Depot this winter, rent the machine
and buy some insulation off the shelf.
yeah, the stuff is so cheap, why not?
I had an attic area open recently and cellulose from about 20 years ago was
in pretty good shape.
It settled maybe .5" out of 6". Fairly humid here for a while in
midsummer (st louis) but not like
in the south.
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