Abstract
To avoid health risks and discomfort, the European Energy Performance for Building Directive (EPBD) mandates that “Member States should support energy performance upgrades of existing buildings that contribute to achieving a healthy indoor environment.” There is, however, no widely accepted method for rating the overall level of indoor environmental quality (IEQ), although several different approaches are proposed by standards, guidelines, and certification schemes. To fill this void, a new classification rating scheme called TAIL was developed to rate IEQ in offices and hotels undergoing deep energy renovation during their normal use; the scheme is a part of the energy certification method developed by the EU ALDREN project. The TAIL scheme standardizes rating of the quality of the thermal (T) environment, acoustic (A) environment, indoor air (I), and luminous (L) environment, and by using these ratings, it provides a rating of the overall level of IEQ. Twelve parameters are rated by measurements, modelling, and observation to provide the input to the overall rating of IEQ. Their quality levels are determined primarily using Standard EN-16798-1 and World Health Organization (WHO) air quality guidelines and are expressed by colours and Roman numerals to improve communication. The TAIL rating was shown to discriminate IEQ levels when its feasibility was examined in eleven buildings across Europe to provide support for its applicability and input for further modifications. Opportunities for using the scheme in other types of buildings and for its further development and application are discussed.
Highlights
Several policies and actions have been put forward by the European Union (EU) to mitigate and reduce the impact of climate change
The acronym TAIL stands for the thermal environment (T), acoustic environment (A), indoor air quality (I), and luminous (L) environment
The quality levels of each parameter comply with the existing criteria in green building certifications, Standard EN 16798-1, the World Health Organization (WHO) guidelines for IAQ, and the European Level(s) framework
Summary
Several policies and actions have been put forward by the European Union (EU) to mitigate and reduce the impact of climate change. IEQCompass is an asset rating as it provides a method for assessing the quality of the indoor environment at the design stage that would result from design decisions that would achieve energy savings, so no actual verification and measurements can be made during its use, a check is made by asking building occupants to rate the parameters defining IEQ Another labelling scheme for residential buildings was proposed by the TripleA-reno project [50], which combines energy performance, indoor environmental indicators, and well-being indicators, and stipulates the IEQ parameters that should be measured, including operative temperature, relative humidity, and concentrations of CO2, formaldehyde, PM2.5, PM10 and total volatile organic compounds (TVOCs). In addition to defining the scheme, pilot feasibility studies in eleven buildings are described to examine its applicability and provide input for further modifications
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