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Unlike new buildings which can be sequenced to maximise thermal continuity, airtightness and speed; the very existence of sub-optimal orientation and constructon methods, old rising walls, intermediate floors, decorative features of a bygone era etc., all complicate the works and impinge upon the performance possible in deep energy-efficient retrofits . It is clear that the more that is stripped away of the old fabric, the more ‘sins of the past’ can become evident and the more control is gained (which ensures the standard is met); yet the building becomes less and less an old building and, if the issue isn’t addressed the associated carbon emissions can rise significantly (albeit alongside a great reduction in energy in use).
Little, J. (2013) Monkstown Enerphit and Passive House Extension, Passive House Plus’ issue 2, vol. 1 (Feb - Mar 2013)
Passive House Plus’ issue 2, vol. 1 (Feb - Mar 2013)