Thermal performance of buildings. Heat transfer via the ground. Calculation methods|Physical properties of soils, Temperature, Soils, Equations, Floors, Slab floors, Formulae (mathematics), Thermal insulation, Basements, Thermal properties of materials, Thermal measurement, Thermal behaviour of structures, Thermal resistance, Underfloor heating, Heat transfer, Thermal design of buildings, Thermal transmittance, Climate, Suspended floors, Thickness, Ventilation, Heat transfer coefficient, Cold rooms, Ground water, Dimensions, Mathematical calculations, Thermal conductivity, Thermal bridges