Innovative EPC Indicator


Adequate levels of indoor air quality (IAQ), thermal comfort, lighting and acoustics in buildings are among the most important benefits and drivers especially for renovation, as they lead to improved health and comfort of the occupants. However, they are not currently covered by EPCs: this indicator allows to assess the levels of comfort in terms of Indoor Environmental Quality for a given building through reliable and evidence-based inputs.

X-tendo develops an assessment approach for calculation of Asset and Operational comfort rating, that is tested in buildings, and consists of a simplified checklist of systems and materials, measurements of temperature, relative humidity and CO2-concentrations and survey of occupants’ perception on aspects such as thermal comfort, indoor air quality, visual comfort and acoustics.

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Calculation procedures

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