Methods used in BPE studies
Combining quantitative and qualitative data collection to create socio-technical approach to studying building performance. BPE studies include:
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collection and analysis of information on energy performance,
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environmental conditions,
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building fabric performance,
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systems integration and commissioning,
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handover and operation, as well as
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qualitative feedback from building owners and managers, design and construction team, and occupants.
The studies involve a variety of data collection methods including:
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Design and construction audit: including drawings and SAP calculation review; interviews and walkthrough with design team; photographic survey; review of control interfaces.
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Building fabric testing: including thermographic survey; airtightness test; U-value testing.
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Commissioning and handover review: which includes commissioning checks of systems and services; MVHR tests; review of handover process and occupant guidance.
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Energy monitoring and assessment: including smart metering and submetering; energy audits such as DomEARM and benchmarking.
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Monitoring of environmental conditions: including temperature; relative humidity; CO2 levels; window opening.
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Occupant studies: which includes occupant satisfaction survey using BUS questionnaire survey; interviews and walkthroughs with occupants; activity logging and thermal comfort diaries.