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Posted by Joe on September 25, 2009, 2:02 pm
> Hi all:
> I'm going to be installing batts into the ceiling (from below) but I'm
> not sure if there's a "correct" way to secure the batts to the
> joists. =A0The old insulation (insufficient, only 4" in a 9" cavity) was
> secured in place by stapling the flanges to the 9" face of the
> joists. =A0From the standpoint of having a secure moisture barrier it
> seems like the flanges should be stapled to the 1-1/2" faces of the
> joists.
> Is one method preferred over the other?
> TIA.
> Tom Young
Many contractors ignore the paper 'barrier' on the insulation and put
6 mil PE film over the studs, rafters, whatever. In your case, that
could be an elegant solution and easy to do. Might be even more
desirable in a ceiling situation.
Joe
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> I'm going to be installing batts into the ceiling (from below) but I'm
> not sure if there's a "correct" way to secure the batts to the
> joists. =A0The old insulation (insufficient, only 4" in a 9" cavity) was
> secured in place by stapling the flanges to the 9" face of the
> joists. =A0From the standpoint of having a secure moisture barrier it
> seems like the flanges should be stapled to the 1-1/2" faces of the
> joists.
> Is one method preferred over the other?
> TIA.
> Tom Young