It offers superior Transparency has to be balanced with its relatively low R-value (energy saving). R-value is considered as one of the most important factors.

2.Re cyclic use:

Glass can be reused for the production of new, different glasses products (external recycling).

3.Insulation:

Low -E improves the insulation qualities.

Disadvantages:

Mining of glass sand results in particulate emissions, soil erosion, pollutant runoff.

Air pollution associated with energy consumption for mining, processing, and transporting materials.

Glass manufacturing release air pollutants that contribute to numerous environmental problems.

Manufacturing is high energy consuming due to high temperature required for processing the raw materials.

After demolition much glass is disposed off in landfill without reuse or recycle.

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