Mark Meshulam is an expert witness and consultant for windows, low-e glass and building exteriors. I feel sorry for anyone charged for the responsibility for choosing or specifying Low-E glass. The choices are nothing short of overwhelming. See for yourself: Guardian Glass PPG Glass-Residential PPG Glass-Architectural Viracon Glass Although I have been “doing windows” since 1981, I am still staggered by the volume of information…
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