Well I have a grow closet with 2 600 watts lights. I can only vent into the attic because there are no widows. My attic has a ridge vent and since its a town home I cant go cutting holes in the roof. The attic is pretty small since my town home is 3 stories. Now I heard in the winter mold can be a issue. Would a ridgevent be enough to keep the attic ventilated. Is there any thing I can do. Maybe put a ozone generator up there.. I was thinking of just putting the duct up to the ridge vent bc thats how the bathroom vents are.