Post date: 26 Jul 2010
Currently, USA, Canada, Australia, New Zealand and Great Britain have adopted systems for energy rating of the fenestration products. Among them, only Australia and New Zealand have taken into account the cooling performance. Finland has launched a pilot program for energy rating window products, while Denmark has developed a labeling scheme for glazing components.
Post date: 6 Apr 2010
The thermal and optical behavior of a fenestration system can be described with the following parameters:
• Thermal transmittance coefficient or heat transfer coefficient (U-value),
• Solar transmittance coefficient or solar heat gain coefficient (g value) - Shading coefficient (SC)
• Visual transmittance ( v
These parameters apply both for glazing and windows.
Post date: 30 Mar 2010