Building - Residential - Mechanical

installing radiant floor. I have 8 mill barrier first then 1.5 inch foam board Rated R 7.5. taping all seams on foam board. installing 5 inch tall R 7.5 foam board around inside perimeter. concrete will be 6 inch thick I and installing Pex 5/8 .070 Smart Wall Tubing w/ O2 Barrier. using plastic staples. This will be two zones and there will be 3 loops per zone each loop is about 245 FT. See diagram.