Certainteed Membrain – Does the orientation really matter? – GreenBuildingAdvisor

Hi all,

I’m about to start drywalling over my vapor barrier, and it occurred to me that a few “patch” pieces used in some cathedral ceiling corners do not have any of the blue printing on them, so I don’t know for sure if they were installed in the correct direction. 

I know that the directions state to install the barrier with the printing so it can be read, but does it really matter with Membrain?  I see that other smart barriers advertise as one-direction, but does that apply to Membrain?

Trying to decide if I need to cut it out or not.  I tried calling Certainteed, but they are closed for the holiday weekend and I’m impatient :).

Thanks!