Having trouble with my friend's 8' x 8' x8' grow area. It is built inside stand alone garage. First grow went ok through the cool months. This grow vegged ok with temps peaking mid 80's .Flipped last weekend and Now we are struggling keeping it under 90°F. We started with 2 bestva led lights, using the same lights and settings used through veg.Ambient outside has been in high 90's this past week. Temps in the grow area peaked over 100°F. Portabe 700 BTU ac unit just goes into thermal mid day. I took out one of the lights to see if that was it,no better. I tried helping ac exhaust out with another 6" inline with little change. My inline filtered exhaust is on lowest setting. I even tried blocking off fresh inlet to see if that was to hot but No luck. All 6 " ductwork leaves the room and passes through the attic. The Attic gets freaking hot. Exhaust ducts go straight to the roof peak vent,intake comes in from the Soffit. Here is the layout with specs. Let me know if anyone sees any problems.