If this is your first visit, be sure to
check out the FAQ by clicking the
link above. You may have to register
before you can post: click the register link above to proceed. To start viewing messages,
select the forum that you want to visit from the selection below.
No. The sand will suck the heat out instead... use proper insulation, either board or vermiculite concrete. We've seen it time and time again- with people having to go back and rework their floors to get them insulated, or just tear down and begin again.