Minimum amount insulation basement bathroom floor

HiI’m installing a bathroom into my basement which has Concrete floor. Property is in  Calgary Alberta (zone6?)The plan is for heated floor (probably Schluter Ditra heat) with tile. Ceiling height… HiI’m installing a bathroom into my basement which has Concrete floor. Property is in  Calgary Alberta (zone6?)The plan is for heated floor (probably Schluter Ditra heat) with tile. Ceiling height…Read MoreGreenBuildingAdvisor