Hydronic infloor heat in bathroom
I'm preparing my master Bath-Bedroom-Closet area and would like to use water heat in the floor of the new bathroom. I was wondering how thick the cement floor must be to embed the 1/2" Pex tubing. I have removed all the flooring in the bath area to expose the tops of the floor joists. The total thickness of the sub and finished floor in adjoining rooms is 1-1/4" plus carpet and pad. Is 1-1/4" concrete adequate for 1/2" Pex. I will be putting tile over the concrete and would like to heat the shower floor as well. What is the proper spacing for the Pex tubing through out the bathroom.