airsealing deatail – flash and batt?
We originally planned to use Zip tape to carry the air barrier from the surface of the Zip across the top of the stud wall to the interior, so that our interior foam air seal could join to it and give us a continuous air seal. But that didn’t happen. The Zip tape wasn’t placed correctly on the gable wall and now our interior spray foam is looking to join the polyiso side of the Zip R.
Another way to ask this question: What sort of air infiltration numbers do you get with flash and batt construction? (If flash and batt will give respectable air sealing, I may not need to worry about this detail.)
Any advice or experience is appreciated.
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