Multiglazed windows: Potential for savings in energy, emissions and cost

G. F. Menzies, J. R. Wherrett

    Research output: Contribution to journalArticlepeer-review

    12 Citations (Scopus)

    Abstract

    This paper details case studies undertaken in four office buildings in Edinburgh, Scotland. Analyses were undertaken of the energy requirements to maintain room temperature in each building. Alternative high performance window specifications were analysed and compared to results for existing specifications. Comparisons were made between the additional embodied energy and associated emissions, and financial cost required to install higher performance windows at the initial build stage, and the potential savings in life-cycle energy and running costs. Results showed substantial savings can be made over the lifespan of windows by optimizing specification. Payback periods for energy and financial cost for some window systems were within acceptable limits, when specified in the initial build. The financial payback periods for replacement windows were higher, emphasizing the need for sustainable and energy efficient choices at the initial design stage. Practical app lication: This paper contains recent case study findings and practical issues relating to the embodied energy of materials and components used in multiglazed windows; and life cycle costing issues which prevail in all current building sectors. Many construction professionals are calling for more detailed and widely available information relating to the sustainability of building components. Pressure is rising for manufacturers and suppliers to meet this demand effectively. © The Chartered Institution of Building Services Engineers 2005.

    Original languageEnglish
    Pages (from-to)249-258
    Number of pages10
    JournalBuilding Services Engineering Research and Technology
    Volume26
    Issue number3
    DOIs
    Publication statusPublished - 2005

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