BASF Paint on WRB air sealing and tyvek transition
New construction climate zone 6b. I have a mix of boral siding and BASF EIFS planned. We have 3” polyiso over OSB, then tyvek (outtie windows) rain screen gap then the boral. The EIFS is planned with 3.5” of EPS in the BASF Senerflex Channeled Insulation Design.
The transition between the tyvek and roll on/spray on senershield is proving troublesome. BASF tech support said the senershield must not be applied over 3m 8067 tape or tyvek tape.
I was planning to use the 8067 tape to air seal my primary air barrier, the OSB sheathing. BASF tech support said senershield is a suitable air and water barrier.
1) How good a job will senershield do in air sealing the sheathing? Outside corners, larger gaps and flexibility would be my concerns.
2) What is the best way to transition between tyvek and the senershield considering the senershield shouldn’t be applied on top of tyvek tape and neither should the senergy adhesive coating be applied on top of tyvek?
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