Currently my main level subfloor is joist, 1/2" plywood, then 3/4" partical board. I am in the process of replacing the partical board with 3/4" with Oriented Strand Board Tongue and Groove.

After ripping up the partical board - Should I glue & screw the OSB board down? Or just screw with red rosin paper in between?

Note: when the subfloor is complete I'll be laying builders felt paper down prior to installing 3/4" solid oak hardwood.

Thanks.