Solar glass local flatness standard

Would a better glass product if more strict and updated flatness standards were implemented?

As demonstrated in this article, our industry would have a better glass product, if more strict and updated flatness standards were implemented. Standard Specification for Heat Strengthened and Full Tempered Flat Glass. Standard Test Method for Measurement of Glass Stress- Optical coefficient.

What is the difference between low-E glass and ASTM g173-03 solar spectrum?

Low-e glass with local atmospheric conditions comparison with the ASTM G173-03 solar spectrum. Solar transmittance can vary up to 5% in comparison with the ASTM calculated one. Necessity to include the impact of the local atmospheric conditions on the performances of low-e glass.

What happens if a solar glass substrate is defective?

As in all other glass manufacturing processes, solar glass substrates are subject to defects during produc-tion. Depending on the defect type and intensity, the impact of these defects can range from a reduced transmission to a considerable negative influence on the mechanical glass characteristics.

What factors affect the flatness of glass on a building?

It should be noted that there are other factors that can affect the flatness of the glass on a building. Roller wave, for instance, should always be parallel to the glazing systems’ horizontal members. If run vertically it can be more visible on the building façade.