My basement has 2" XPS foam against the concrete walls (glued and taped and
sealed), with a 2x3 stud wall over that. Can Roxul 3" batts be squeezed i
nto a 2x3 stud wall? Or will that just be an impossible situation and break
the 1/2" sheetrock to be intalled over the whole thing?
I have no prior experience with Roxul, so any knowledgealbe comments are gr
On Fri, 18 Sep 2015 19:05:28 -0700 (PDT), email@example.com wrote:
Stud wall tight against the foam??
We set the stud wall about half an inch from the foam, framed with
2X4, and installed Roxul. It in not terribly hard to compress but not
sure how it is sized - I thought 4 inch was for 2X4 (3.5") so 3" would
be for 2X3 (2.5"), which would mean "no problemo"
On 09/18/2015 10:14 PM, firstname.lastname@example.org wrote:
Product sheet indicates the 2.5" product is produced in 16-1/4" width
for metal studs instead of 15-1/4" width (wood studs). So, _might_ have
to trim width with it...I'd guess a full inch compression would not be
best use of insulation $$ although having not used it no idea just how
hard it would be to install. Couldn't find any data on actual
compression ratio vs resultant R value for it...
True. Roxul manufacturer replied to me in the same manner: use the 2.5" product and just trim the width to accomodate 16" o.c. studs.
Their additional concern was that if I compressed a standard batt, it might pop out the sheetrock (in the long run).
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