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- Thermal protection and modernisation of existing buildings
- andard in refurbishments of existing buildings is not always a realistic goal, one of the reasons bein... ly, often single measures only, and buildings are not improved to a high efficiency level such as Ener... by part ==== Buildings may also be retrofitted not as a whole, but partially. Starting with a secti... instances. In many countries, single measures do not even require a building authority approval. Ther