Special Features:

Window to be non-icing at minus 20 degrees f in 40 knot wind with 65 degrees temp. Inside; electrically heated glass to be 4-ply consisting of 2 ply-1/4 inch thick & 2 ply-3/4 inch thick. De-icing flim to be on inside of the outside 1/4 inch glass, all piles to be heat treated. Window shall operate on 440 volts ac single phase at 200 watts per square foot & shall be individually thermostatically controlled with a singlew on/off switch in each space to control all the windows in that space

Properties:

A transparent item consisting of two or more pieces of glass, with straight parallel surfaces bonded together by an interlay of transparent plastic to prevent fragmentation or splintering if broken. It may be heat strengthened and/or tinted and is generally used where safety glazing characteristics are required, such as airplane windows, explosive hazards and furniture shielding.