Zip panels as a WRB for SIPs?
We are building our home with 8.25″ SIPs made from OSB and EPS foam. I have been considering using a fluid applied WRB like one from Prosoco, Stoguard, Tremco, or the fluid applied Tyvek brand. I’m reading varying reports of their durability and have been turned off by their steep prices. For instance, based on estimated coverage, the Prosoco Cat 5 would run me around $1.44 per sq ft. Surprisingly, sheathing over the Sips with Zip system panels would be around $0.62 per sq ft. I know there will be differences in labor costs, but would using the zip system and tape actually be the better solution here?
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