Concrete, Hammered Copper, and Zoned Heated Slate.
Spa sanctuary featuring a curbless steam shower in honed charcoal slate, hand-hammered copper soaking tub, and zoned silent hydronic radiant heat beneath uncoupled stone to prevent cracked tile or cold spots.
Radiant Floor Under Stone · Construction Anatomy
Click any numbered pin on the image above or select a layer below to inspect assembly materials and homeowner benefits.
- 1Honed charcoal slateDense natural stone offering superior thermal storage and wet slip-resistance.
- 2Uncoupling membraneWaterproof layer that accommodates subfloor lateral movement, preventing cracked tile and grout.
- 3Gypsum underlaymentPoured thermal thermal mass that distributes warmth evenly across the entire walking surface.
- 4PEX oxygen-barrier heating loopsClosed-loop hydronic heating delivering silent, draft-free room temperature control.
- 5Aluminum heat-transfer platesSnapped over PEX tubing to conduct thermal energy rapidly sideways across floor bays.
- 6Continuous rigid insulation boardDirects 100% of generated thermal energy upward into the bath rather than downward into floor cavities.
- 7Engineered structural subfloorGlued and screwed tongue-and-groove decking for a silent, deflection-free foundation.
