How to Find Studs Through Exterior Insulation
I have 2 questions about installing vertical furring strips for siding over 3″ of exterior Roxul Comfortboad insulation (over a peel and stick WRB/exterior air barrier). I plan to connect the furring to the studs (nominally at 16″) with long structural screws through the insulation.
1) How do you efficiently locate the studs once WRB and exterior insulation are installed, to reliably hit the studs with the screws? I assume the studs will not all be at exactly 16″ c/c, due to framing having to line up for openings, beams, etc.
2) If I do miss the stud when installing the screws, my instinct is to leave the screw, or else there will be a hole in my exterior air barrier (I also plan to have an interior air barrier). However, any ideas of how I would seal that 1/4″Ø hole through 3″ of Roxul insulation if I did remove the screw?
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