NF EN ISO 52016-3, P50-785-3 (10/2023)

This document specifies methods for calculating energy requirements for heating and cooling, indoor temperatures and sensible and latent heat loads of a building in accordance with the hourly calculation methodology of ISO 52016-1. Additions or modifications to calculations are provided in this document if the building envelope contains one or more adaptable elements (elements of the building envelope with adaptable components that are regulated either by the environment or actively by depending on specific conditions). The adaptable building envelope element replaces the transparent building element in the calculation according to ISO 52016-1. The three types of adaptable building envelope elements covered by this document are: — building envelope elements with dynamic solar protection; — elements of the building envelope equipped with chromogenic glazing; — elements of the building envelope equipped with an active ventilation cavity. Environmentally activated control is described for building envelope elements with chromogenic glazing, but can also occur for other types of adaptable building envelope elements. In this case, the same approach as for environmentally activated chromogenic glazing applies. This document applies to the assessment of the energy performance of buildings (EPB) (energy performance labels and certificates), including the comparison between buildings and the verification of conformity against energy performance criteria minimal. It is also applicable to the assessment of the contribution of the adaptable element of the building envelope to the readiness of a smart building. Additionally, this document provides indicators of the impact of the adaptive building envelope element on building performance relative to a reference building envelope element. It applies to buildings at the design stage, new buildings after construction and existing buildings in the use phase. It does not apply to adaptable, geometrically complex elements of the building envelope which can be modeled only as multiple coupled thermal zones. NOTE The context for the selection of adaptable building envelope elements is given in ISO/TR 52016-4.
(Automatic translation from French)