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ADVISORY PAPER - January 2026 Dear members, As homes adapt to increasing climate extremes, managing solar heat gain through glazing has become critical. While LowE glass improves energy performance, higher SHGC values combined with interior reflective blinds can unintentionally create overheating conditions that may impact window systems. Terry Adamson, Technical Director, wished to share this document as a public service to Canadian architects, home builders, building offici