Building materials, namely, energy efficient double sheet glass and glass panes for windows, translucent windows, spandrels, and wall panels that regulate the flow of heat into buildings or structures, all not of metal; energy efficient colored glass sheets and panes for windows, spandrels, and wall panels that regulate the flow of heat into buildings or structures, all not of metal; energy efficient translucent glass sheets and panes for windows, spandrels, and wall panels that regulate the ...

Building materials, namely, energy efficient double sheet glass and glass panes for windows, translucent windows, spandrels, and wall panels that regulate the flow of heat into buildings or structures, all not of metal; energy efficient colored glass sheets and panes for windows, spandrels, and wall panels that regulate the flow of heat into buildings or structures, all not of metal; energy efficient translucent glass sheets and panes for windows, spandrels, and wall panels that regulate the ...