Roadblock, I think the crosslighting is super important. When I turn on just one row of my lights it is extremely dim looking compared to with all the lights going. That would be what I assume it would look like with a wall in there. If you read the Gavita and other manufacturers literature that they put out they say walls kill your yield. Even with reflective material, a lot is lost.
I found this useful-
https://gavita.com/retail/app/uploads/How-to-design-an-optimal-growroom.pdf
"The reason for that difference in losses is caused by your walls. In a small room the ratio wall surface
to floor surface is much higher than in a large room. A 1x1m room has a 4:1 wall to floor surface ratio
(4 meters of wall to 1 square meter of surface). A 5x5m room has a 1:1.25 wall to floor ratio (20 meters
of wall against a 25 square meters of surface) which makes all the difference. More walls mean more
losses. Larger rooms are more efficient than small rooms."
Thanks that makes so much sense, I have two 12x12 rooms 9x9 grow spaces and was thinking of knocking out the wall and run the 8 chm 630s in one bigger room instead of the two smaller rooms, not sure how much of advantage it would be because its not square.
The reason of the two rooms was so I could flower 24 hrs a day.