[Greenbuilding] voluminous wall cavities - limits to what one can reasonably dense pack with a cellulose blower?

[Topher]

What sort of access will you have to the spaces when you are doing the fill?

1-1/4" gap sounds like the worst possible gap, wide enough to let a lot 
of material through, not big enough to let pressure through to achieve 
dense pack.  My thought would be to separate by bays instead of between 
interior and exterior (as that only fixes the problem on one side).  
Other options include, alternating the mesh between interior and 
exterior, or offsetting the truss from the load bearing wall (which 
helps reduce thermal bridging) and then alternating.

Thank You Kindly,

Corwyn

On 6/22/2013 1:47 AM, Reuben Deumling wrote:
> I understand that it is possible with thick walls (10-1/4" in my case) 
> to find oneself unable to achieve a dense pack if the cavities are too 
> wide/one doesn't create enough baffles. In the case at hand I am in 
> the process of building a double wall (2x6 load-bearing interior, 2x4 
> ~Larssen truss exterior) with about an inch and a quarter gap between 
> the two walls.

-- 
Topher Belknap
Green Fret Consulting
Kermit didn't know the half of it...
http://www.GreenFret.com/
topher at greenfret.com