EPS unfaced type 1 or R-tech?
I’m in south dakota zone 6a. I’m having exterior insulation then a rainscreen retrofitted over r13 FG in my walls with taped zip sheathing. I confused myself by reading too much. Tomorrow is insulation day and my last shot to change anything. I have 2″ unfaced eps which seems like it might have been meant for below foundation use (sku: 1632118 on the Menards website),
*I’m worried R-tech might be the better option but it has a laminated polymeric facer on it?*
I dont have any vapor barrier/retarder other than latex paint.
*I want my exterior walls to be vapor open, I think, so I should stick with the current unfaced option? *
And slightly off topic question, I’m about to renovate the bathroom and I assume it should have a stronger vapor retarder than just paint,what do you suggest?
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