"Ivan" wrote in message
...
I was in HD today looking at insulation. I saw something new (to me).
The
propaganda on a certain brand claimed it had extra "sound proofing"
qualities.
The product was green and seemed softer than the regular pink fiberglass
insulation. Not as soft as Charmin, but still softer and almost woolly.
Does anyone know about this brand? Would the sound proofing qualities be
that much more than pink fiberglass? I'm going to be stuffing insulation
in
the joist cavities in a down stairs room.
Ivan
green stuff in small bales, right? it is cellulous, ground up newspaper
with a fire retardant.

I just had r-19 installed over the existing ~r-30 ish plus r-30 over the
garage which had nothing. It was cheaper to have some one do it than it was
to buy it at the home center.

Insulation works because of the air spaces. Tightly packed areas will not
insulate more than loosely packed.

As for the sound it will help some. depending on your situation, there is a
black fibrous board (4X8 sheets) that I have seen installed under drywall
that seems to help sound transmission.