In order to reduce the non-renewable energy requirements, a binding energetic evaluation must be accomplished considering the characteristics of the building’s thermal envelope, the conditions of its technical systems (electricity, water heating, lighting), and the sources of energy. The Energy Performance Certificate (EPC) rates how energy efficient a prefab, like any other house, is. According to national calculation methodologies, every house gets an A to G grade (being ‘A’ the most efficient).
EPCs are valid for ten years.
Energy Performance Certificate (EPC)
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