sweating problem in room

Ok try hard describe set up have 5x8x5 room but it is in attic of garage running 2 400 hps lamps have no exhaust as of yet what we
Jus flowering someone else vegd room lined with black white poly inside temps stay jus below 70 lites off almost 80 when on last two days room sweating bae getn mold on walls bad I will today installn 170 cfm growbrite inline with cf for exhaust hope this helps outside temps r in 30s running oscilating fan lites on as well

Maybe try to insulate that area your growing in your attic a little better then what it is. Tack some foam board up on the walls. Hows the humidity?

Thanks that is my next plan my partner who is doing most the work I travel a lot trying to go at it to fast tried get him to do from start wut we dealing is twelve plants that were given to us already n midl second week of flowering he had get it going without finishin it now we got a grow room with good equipment using good nutes soil man running it in hurry rushing it gonna mess it up hope learns lesson won't listen me