Ok, so first off. Use thicker plywood. I wasn’t happy with how bendy and warpy this plywood was.
Plywood Over Sand Mass Radiant Floor
Sand Thermal Mass Radiant Floor
Next step! Fill it in with sand.
New Sleepers for Sand Thermal Mass Radiant Floor
So after nailing all those sleepers down, I found out almost instantly that they were not holding.
Sleepers on Styrofoam – Thermal mass radiant floor
So the bedrooms are going to have wood floors, specifically nail down wood floors. Therefore concrete is not an option as I can’t nail into it. So the method I choose was to lay out sleepers to support the floor
Sand and Plywood Deliveries
The sand is here!
Install Styrofoam over concrete for radiant heated floors
I decided that more than anything I wanted warm floors. I wanted my heat to come from everywhere instead of one duct, or one radiator. I have allergies to dust, so forced air was out of the question. Running baseboards