Energy savings in hotel Retrofit

Challenge

In Sweden the energy requirement for a building to be retrofitted is, in principle, the same as for a new project. The possibilities for energy efficient design is, however, limited compared to new building design. For example the space available for ventilation ducts may be smaller and as consequence more fan electricity must be used to distribute the same amount of air. Also the existing structure may prohibit appropriate envelope insulation and create increased transmission losses due to thermal bridging. In this hotel retrofit project the Swedish building code therefore put tough requirements on energy efficiency.

Solution and result

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