Veg on top or flower?

Building a cabinet for grow. I am thinking of putting vegging on the top half of the cab because they can handle more humidity then flowering Can. And I plan on the exhaust for the bottom flowering room to escape into the veg room with its own exhaust on the top of that chamber. What your thoughts???

First time on RIU but have closet and cabinet grown for years. IMO exhausting your flower chamber to your veg will be counter productive. Flower room being drier than veg plus higher heat from flower(depending on light source). Typically running more light /lumens generating more heat. UNLESS you're drawing cooled air directly into your veg chamber along with humidifier.
I'd run them independently from each other IMO you're better off