Vapor barrier in veg box?

[SBudz08]

I've decided to go perpetual and build a veg box inside my grow room. The box is going to be about 5' x 2.5' x 5.5 and made out of 2x4 & plywood. Since I'm going to be keeping the humidity in this box higher than in the main flowering area that it will be in, do I need to put up vapor barrier on the inside to isolate the different environment not to mention protect the wood for longevity? I'm going to also be using Reflectix inside the box. I already have a good amount of 6 mil plastic sheeting left over from putting up the vapor barrier for the whole room.

Here's my grow room build thread:
https://www.icmag.com/ic/showthread.php?t=301792

Thanks for your feedback!

 

[queequeg152]

not unless the air outside this structure is to be very cold...

the purpose of the interior facing vapor barrier is to prevent moisture condensing inside the wall assembly.