Zip R6 retrofit
I am planning to replace the vinyl siding and windows on the second story of my 1963 colonial tract-home in climate zone 4 (Hampton Roads, VA). The first floor is brick veneer. The second floor is currently sheathed in 1/2″ fiberboard. I would like to add external foam sheathing during the re-siding process. There is plenty of info on wrapping existing sheathing with foam boards, but I am wondering about wrapping (or replacing) the existing sheathing with Zip System R6. It seems to me that this would simplify window and siding installation as well as drainage plane details. The walls are 2 x 4 and will be filled with R15 batts. Thanks for your experiences and advice.
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