[Greenbuilding] Weight of spray cellulose

[Reuben Deumling]

R80, huh? Wow.
I'm curious, Frank, what you make of the article circulated here recently
that suggested that (and I'm paraphrasing) above R30 the ventilation of
cathedral ceilings could be skipped?

On Sun, Feb 19, 2017 at 6:05 PM, Frank Tettemer <frank at livingsol.com> wrote:

> I agree with David's suggestion, to alleviate concern,
> However, for over a decde we have in 22 inches of blown in place cellulose
> = (R-80?). this had held up consistantly each year, We put up MemBrain by
> Certainteed stapled to the ceiling joists @ 24" o.c..
> Then, 1x4 spruce strapping on 12" o.c.
>
> Then 1/2" drywall, double screwes into 1x4 on 9" o.c..
>
> At least 30 ceilings and insulation installations over 14 years,
> with no failures except in my own garage ceiling where I stepped off the
> joists with my big bad foot.
>
> Question?: Do you have a plan to block off the vented soffits, and allow
> ventilation channels from the vented soffit, above the cellulose, to the
> vented ridge, or, maximum vent box, or similar?
> More opportunities and good use of corrugated cardboard?
> Or inexpensive Moore vent/rafter vents, and vertical cardboad baffles,
> from outside face of the wall plate, up to the rafter vents?
>
> Cheers,
> Frank Tettemer
>
> On 2017-02-18 12:29 PM, David Wentling via Greenbuilding wrote:
>
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