Question about rad fan exhaust

[T.R.A.N.C.E.]

So doing the build below currently and wondering if I should have the fans on the rads exhausting into the case, or out of the case, or front rad exhausting into case and top rad exhausting out? I personally am leaning towards both rads exhausting out of the case, but then will there be a problem with limited air intake from within the case then?
Cheers

The water side:

Rad 1: 420mm Coolgate in Push Pull mount in Roof
Rad 2: 280mm Coolgate in Push Pull mount in Front
Fans: 11x Arctic Cooling F14
CPU: EK Supremacy Nickel/ Clear
GPU: EK-FC R9-290x Nickel/ Clear
Pump: D5 vario (Swiftech MCP665)
Reservoir: XSPC Acrylic D5 standing Res
Tubing: Primochill 1/2" ID 3/4" OD Clear
Fittings: Mix of Alphacool and XSPC compression

The hardware side:

Case: Fractal Design Midi R2 (mod to fit 420mm rad in roof)
PSU: Seasonic X-1050W upside down mount (mod to use 140mm Arctic fan)
Mobo: Asus Z87 Gryphon
CPU: Intel i7-4770k
GPU: Gigabyte R9 290X 4gb
RAM: 8gb Team Xtreem 2133mhz C10
SSD: Plextor M5S 256gb

 

[tinytomlogan]

If its in the roof then fans blowing out of the case

 

[T.R.A.N.C.E.]

^ ok thanks, what about the second rad in front of the case, blowing in to or out of the case? Out would be better right? As then the top mounted rad would not get the second hand warm air exhausted into case from front rad.

 

[tinytomlogan]

^ ok thanks, what about the second rad in front of the case, blowing in to or out of the case? Out would be better right? As then the top mounted rad would not get the second hand warm air exhausted into case from front rad.

In the front out the roof mate as you would if it didnt have rads - FYI I do the exact same thing in Orca