How does extra-clear glass differ from standard glass?
] A: Extra-clear glass or what is also known as “low-iron” glass, is made from specially treated raw materials that have had their iron content removed. This eliminates the natural green “hue” seen when looking along the edge of standard glass and makes the pane appear clearer. Extra-clear glass maximises the free solar heat gain of a window and incorporating an extra-clear outer pane into an EcoClear double glazed unit, allows a window to achieve an A Window Energy Rating.
