[Greenbuilding] removing paper facing from (new) fiberglass batts?

[Clarke Olsen]

Send it back, and get Roxul.
Clarke Olsen
clarkeolsendesign.com
373 route 203
Spencertown, NY 12165 
USA
518-392-4640
colsen at taconic.net




On Feb 4, 2017, at 8:10 AM, Norbert Senf <norbert.senf at gmail.com> wrote:

> Not sure why you would want to punch holes, assuming that you had a proper vapor barrier in place at the right location in the assembly.
> When using multiple layers of ceramic fiber insulation in commercial bake ovens, we have learned that it is good practice to sandwich foil in there, to break up the convection currents that happen internally at  high temperature differentials. I'd guess that something similar happens in fiberglass even at lower delta T's..........Norbert
> 
> On Sat, Feb 4, 2017 at 2:18 AM, Reuben Deumling <9watts at gmail.com> wrote:
> My local supplier of fiberglass batts has only faced batts in the sizes I'm looking for (R19 x 23"). I've removed the paper from batts-that-are-being-repurposed but not from new-in-the-box ones. Are there tricks or tools for accomplishing this with a minimum of frustration? 
> The reason I want to do this is so I can run the batts perpendicular to each other, half of them vertical between rafters (unfaced) and the other half horizontal between purlins attached with hurricane ties to the rafters (faced). 
> Or would it be just as good to install the faced batts and then poke a bunch of holes in the paper before adding the second layer?
> 
> Thanks very much.
> 
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