This Guidebook presents the fundamentals for specific energy efficiency and other renovation measures in existing buildings for which HVAC systems play an important role. Emphasis is placed on market-ready and technically mature solutions that have been proven in practice to increase building renovation rates and facilitate the enregy renovation process of existing buildings.
The aim of the guideline is to support, in a practical way, a design process for realizing Nearly-Zero Energy Buildings (NZEB) in the context of Mediterranean-climate, focusing more on the mechanical systems than on the building envelope, which has previously been treated in Part 1 (REHVA Guidebook No. 28).
This guidebook shows three nZEB buildings of different uses: office, locker room and single-family house. The three real cases are analyzed for different climatic zones, where different alternatives for the design of the building and its facilities are presented.
This guidebook aims to build a bridge between the real estate community and the engineering community. It explains the challenges of property valuation based on real data and how the sustainability and HVAC-technology can have an impact on value.