You might want to reconsider Nathaniel. The fibreglass will retain moisture
in there.
That's where the foil/bubble/bubble/foil material is best.  More R value and
no water retention!  :)

On 12/31/06, Nathaniel Poole <npoole@telus.net> wrote:
>
> See http://www.nrcratings.com/nrc.html.
>
> Aside from the acrylic/cellulose slop I'm putting on as a first layer, I'm
> going to try to stuff the interior panels with fibreglas acoustic ceiling
> tile. These aren't quite as good as what is listed above, but they also
> provide thermal insulation. These have an NRC of 55% and Transmission
> coefficience of 35%. That will make a big difference. And that's before I
> install the cloth-covered interior surface panels. If there's still space
> in
> the "walls" I'll stuff it with more fibreglas.
>
> Nathaniel
>

--
Jake
1984 Vanagon GL
1986 Westy Weekender "Dixie"
www.crescentbeachguitar.com