Pilkington Spectrum is a Windows-based glass performance model which enables you to quickly and efficiently calculate key properties of a wide range of single glazing and insulating glass units. Also available as an app for mobile devices, you can use Pilkington Spectrum to provide the following information:

• Light and solar properties (transmittance, reflectance, absorptance, g value, etc.).
• Centre pane U_g-value.
• Sound insulation values.
• Global Warming Potential (GWP), or carbon footprint.
• Ultra violet (uv) transmittance and colour rendering index (R_a).
• Other properties (e.g. pendulum body impact resistance, fire resistance, resistance to manual attack, etc.).