Subfloor over radiant tubing

Got a pallet and a half of subfloor sheets delivered to put on over the main level floor over the concrete.  It took 2-3 weeks to wrap that up, but it went down pretty good.  Had some help on a couple weekends, and did some myself during the week on evenings.  It was interesting as the sleepers we put in were so diced up by having to fit around the tubes, that it took time to mark each sheet as to where you could drive a screw before you placed it and secured it.  All in all it worked out decently, but like everything, it just took time to get done.  Fitting all the angles in the master bath was probably the most time-consuming single part of this.  The subfloor is glued and screwed down, and then end result is pretty impressive.  With the combination of the initial subfloor, 1.5" of concrete and the second subfloor over it, the main level floor is absolutely rock solid.  It doesn't bounce at all or make a bit of noise when you walk on it.  The reason for the second subfloor is to have something to attach the finish floor to.  Most of the main level is going to be wood floor, and this will work well for that, plus as a base to build up with backer board for tile.

I thought I had more pictures of this in process ( I swear I do..) but I cannot find many them so we will have to go with this for now.  You can see the subfloor in place in some of the upcoming interior shots, too.  We started in the great room, and here it is over half done.  This zipped along pretty decently, until we hit the master bathroom which had a lot of 45 degree angles in it.  That took a lot of time, as noted.