It also looks like some of the bays are far less then the width to the insulation and it's just jammed into place instead of ripping it to width.
Is that CDX plywood going to be used as a sub floor?
CDX would be fine for a wall or roof sheathing but not as good for a sub floor.
It's got open knots and voids in the core will cause soft spots in the underlayment, cracks in the tile or grout if you go with tile.
It would have been far better to use T & G underlayment rated plywood or better and cheaper Advantec subflooring. Advantec will hold up to moisture, will not delaminate, more stable then plywood, no voids.
Last edited by joecaption; 11-23-2011 at 09:50 PM.