I would also like a copy of any and all information on diy gypcrete floors as I am in relatively the same situation as the person above, and I would like to use gypcrete to cover my radiant heat system on main floor. I am very experienced in many trades including concrete and have seen some pretty shoddy gypcrete installations. I more than anything want to do it myself so that I am ordering my own materials at my selected strength and am installing it up to my standards. Thanks, yours sincerely Dan Plouffe