[Greenbuilding] innovative solution sought

[Reuben Deumling]

I have used hurricane ties (the ones that look a bit like a bowtie) to
secure 2x4s running perpendicular to the rafters (horizontal), leaving a
small gap between the rafters and these 2x4s. I reused existing ~R-30 and
R-13 fiberglass batts running perpendicular and sheetrocked the inside. I
have been very pleased with the result. Not sure if this could provide some
ideas for your situation but perhaps.

On Fri, Sep 9, 2016 at 7:59 AM, Sacie Lambertson <sacie.lambertson at gmail.com
> wrote:

> All, We have an old house in which we want a well insulated unvented
> attic.  We are replacing the existing roof (with metal) and installing a
> minimal layer of XPS on top of the sheathing. We plan to use closed cell
> spray underneath followed by dense pack cellulose between the rafters.  The
> problem is the rafters, which are only 2x4s in this old house.  I am
> looking for a creative least expensive way to provide more rafter depth for
> the insulation.
>
> (We do not want to build up the insulation on the top of the roof
>  sheathing because doing so requires the added cost of completely
> rebuilding the existing soffits, which are in good condition).
>
> Will appreciate all your useful suggestions.
>
> Sacie
>
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