Zip System vs Rigid foam WRB
Hi all, we are planning on building a house to sell, nothing fancy, just a square 1800 sq ft 2 story house. I was planning on using zip system, but another idea is bugging me, what if i used 1/2 inch of foam as a WRB and just use regular osb, extend the window openings forward and flash over the foam and tape all seams. This is a budget build, but i would like it to be a bit better than all the builders that use cheapest stuff. Would this be worth the hassle or using zip and carefully taping all seams will be a better decision. I was also thinking of using reclaimed rigid foam and skipping the batts entirely, but at 2.5 inches thick minimum it kinda makes everything harder and more expensive with the rain screen on top. Code is R13 in my area. Sale price should be about 200k. Most people at this price point care about interior more than the building science, but i would just like to be a bit better than the rest.
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