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C075 -- Novel R7 Fixed Windows & R9 Daylight Transoms for Net Zero Energy Buildings

M00007987

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C075 -- Novel R7 Fixed Windows & R9 Daylight Transoms for Net Zero Energy Buildings

Conference Proceeding by ASHRAE, 2022

Mark Isaacs, M. Arch., Mahabir Bhandari, PhD, Member ASHRAE; Jeff Burger, BS, MBA

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An Advanced Building Construction technique take a whole systems view integrating high performance windows and the walls around them to yield first cost savings through efficiencies of materials and labor while doubling overall energy performance. Multi-pane acrylic fixed windows up to R7 (.85 W/m2/°C) and R9 (.62 W/m2/°C) daylight transoms have been tested to national standards. Integrating these windows with 24” on-center (610 mm) framing results in the elimination of thermal-bridging framing to improve the thermal resistance of the wall around the window. The approach introduces the idea of the architectural bay, composed of one or more windows and the wall around it, as the ‘Finite Element’ of the building envelope: getting the bay ‘right’ from a thermal

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Published: 2022 Number of Pages: 9 Units of Measure: Dual Product Code(s): DBldgsXV-C075