[Greenbuilding] Weight of spray cellulose

[Sacie Lambertson]

There is no closed cavity as such.  Rather it is a matter of the netted
insulation going into the space at the end of a rafter run where the rafter
meets the ceiling below, ie into the joist. The ceiling is open still, ie
no dry wall.

The suggestion we staple cardboard in this space is a great one, easily
done.  Thanks Mike for the suggestion.

If the existing ceiling is uneven, we'll strap the whole thing.

Thanks for the various responses.

Sacie

On Wed, Feb 15, 2017 at 12:19 PM, Clarke Olsen <colsen at fairpoint.net> wrote:

> True: I doubt in would stick to a ceiling.
> Clarke Olsen
> clarkeolsendesign.com
> 373 route 203
> Spencertown, NY 12165
> USA
> 518-392-4640
> colsen at taconic.net
>
>
>
>
> On Feb 15, 2017, at 12:36 PM, Topher Belknap <topher at greenfret.com> wrote:
>
> > Greetings,
> >
> > I wouldn't wet spray cellulose into a cavity.  The only reason for wet
> > spraying, that I can see, it to have it stick to a wall assembly which
> > is still open to the space.  That way it can (and should) be thoroughly
> > dried before putting on the wallboard.  Since it will be dried and firm
> > by then, no additional force will occur for the wallboard.  For already
> > closed spaces, blow *dry* cellulose to 3.5 pounds / foot^3.
> >
> > Thank you kindly,
> >
> > Topher
> >
> > --
> > Topher Belknap
> > Green Fret Consulting
> > Kermit didn't know the half of it...
> > http://www.GreenFret.com/
> > (207) 882-7652
> >
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