Issues with humidity in my PVC tank

[Bogertophis]

Gotch, I covered 2 out of the 4 and I’ll see how it goes. Only used the tape on the outside, it’s foil tape.. is that okay? And yes no sticky anything of any kind in his enclosure, I was on the BP subreddit and I was told the exact same thing. I don’t even wanna think about the damage it could do.

Any kind of tape is fine to block some air flow- it's on the outside.