Tracy Rogers, vice-president of sales and marketing for Keystone Certifications, presents the results of a one-year study he performed at Quanex on the effects of adding a retrofit insulating glass layer to the existing single-pane windows in an older commercial building in Philadelphia. Using careful science and detailed descriptions of the approach taken, Rogers convincingly shows the benefits of IG retrofits with a full discussion of costs and energy savings. Architects and contractors involved in renovating older buildings will benefit from Rogers’ comprehensive review of this new method for updating old fenestration.
>> Read Tracy Rogers full bio online here
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