ShadingCoefficient | S | Reduction of the Solar Heat Gain Coefficient (SHGC) value (equal to the g-value in Europe) of the glazing by applying a shading device. Commonly known as Fc (or previously z-Value). The total Radiation Transmittance g = g * Fc. The reduction coefficient is given as a unitless value between 0 and 1; the lower the shading coefficient (SC) the less solar heat it transmits | Number |
ExternalShadingCoefficient | E | Radiation transmission coefficient of the outside shading device. It is a value without unit | Number |
InternalShadingCoefficient | I | Radiation transmission coefficient of the inside shading device, symbol 'b-value'. It is a value without unit | Number |
InsetShadingCoefficient | I | Radiation transmission coefficient of the shading device inside the glazing, symbol'b-value'. It is a value without unit | Number |