mold/mildew resistant paint is a good call thank you! I think ill be exchanging air, i might play around with c02 in the future but gonna keep it simple for now. I actually used this same space about 6 years ago with a 5x5 grow tent. I had no issues at that time running a 600w hid. pretty sure it was in the winter and I don’t remember heat or cold being a issue.
My bedroom is actually in the basement and ill be partitioning it in half for this flower room.
so if anything im pretty sure ill be fine in the winter temps wise but would like to not run a ac during the summer if its not necessary. (I do have a ac unit just incase)