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todd todd is offline
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Default insulate shop attic


"Gerald Ross" wrote in message
...
todd wrote:
OK, I've put this job off all year while it was warm. I need to insulate
the garage/shop attic. I have about 500 SF of attic space to insulate
and the joists are 2x12 on 16" centers. I'm trying to decide between
cellulose and fiberglass. From what I can determine, cellulose will be
cheaper to install and may perform better. In fiberglass' corner are
built-in vapor barrier and maybe easier to deal with overall. Here are
the questions I have.

1. The manufacturer's instructions for cellulose only state the blowing
machine as a method of installation, but a few places on the net that
I've read state that if the rafters are exposed, you can just cut open
the bags and essentially dump the stuff in. Can anyone confirm one way
or the other?
2. If I use cellulose, do I need to put down a plastic vapor barrier
first?

Anything I'm missing?

TIA,

todd

The cellulose they put in my attic could not be "just emptied out". It was
more like a bale that the blowing machine chewed up and spit out. The
contractor said it was free to use with the purchase of the cellulose
insulation. I'm sure there was a deposit. It took one man in the attic and
one feeding the machine, which looked like a 55 gal. drum with a blower
and mixer inside.

--
Gerald Ross
Cochran, GA

A man is not complete until he is
married, and then he's finished.


From looking at it in the store, I get the same impression that it would
need to be mechanically separated as it appeared to be a compressed bale
like you said. But I've never really opened one up, so I wondered if it
just came apart when opened.

todd