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How do you seal windows from the exterior for water and air but not create a vapor seal?

Piyush Prince Published: Nov. 7, 2018, 12:10 a.m.Last updated: Dec. 1, 2019, 4:32 a.m.

I am following your technique to seal the windows from inside that is to use Rockwool to insulate the gap and tape for water, air and vapor barrier. I am concern that taping it outside might cause the vapor sandwich which I want to avoid. I am not sure what you have done for 2015 model home for exterior.

Your help on this is highly appreciated.

Thank you.

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