[Greenbuilding] mesh for retaining open cavity blow-in insulation

[Reuben Deumling]

On 8/27/07, jefro at mcn.org <jefro at mcn.org> wrote:
>
> We faced this same question last month.  We opted to simply install the
> sheetrock and drill holes.


I am warming to this idea, though will still use the fabric on the vertical
walls. My concern is that with 7-1/2" x 22"+ bays I might have trouble
getting the stuff packed in as tightly as I'd like to. Perhaps this is not a
concern, but a post from Corwyn a while back got me thinking about this.

So I was wondering whether it might make sense to add a baffle/compression
step after sheetrocking the first half of the ceiling and drilling the
requisite holes?  I'm imagining mounting a 7-1/2"x 22" board on the front of
a 6' pole with which to compress the bay a few times--or to insert and back
off gradually? I think this method could work until I put in the last 32"
strip down the middle of the ceiling. This would leave 22" x 32" x 7-1/2"
cavities I would have to rely on blower pressure to compress.

Thoughts?

Reuben Deumling