Thank you @marksmanbbs, @Countryboyjvd1971, and @bob31. Your feedback is much appreciated. You just confirmed what I’ve been thinking about doing and that is to insulate the concrete walls I painted flat white. I’m having a difficult time keeping the humidity around 55% - 60%, it keeps dropping down to around 40%-45%. My temps have been ok with the range being between 70 F - 82 F(within the dome) for the girls. The room itself is in the mid 60s F.
I’m working on a more automated system using the TH16 Sonoff WIFI switch to control a mister and fan. Right now I have to spray water into the dome and move a heat lamp up and down underneath the rack the dome is sitting on.
Below is an update on the room construction. The pictures are taken from each end of the room. The first one from front right corner looking towards the door and second one from front left(near the door). Both from inside the room looking out perspective.
I will finish up the veg booth this weekend. Waiting for the Vivosun Powerlux 400w ballast to arrive.