Energy saving orders

New energy saving orders for existing and new dwellings are being introduced worldwide. Their overall aim is to help counter climate change by making buildings more energy efficient with measures such as improved insulation and more-efficient heating systems. Some saving orders have made air pressure leakage testing mandatory to improve airtightness. They also cover aspects such as minimum acceptable U-values for walls, roofs and floors.

In the UK, the amendments to Part L of the Building Regulations include the key requirements for new and existing dwellings. In Germany, it is the EnEV that sets minimum requirements for energy-saving buildings. The European Union’s Energy Performance of Buildings Directive (EPBD) has been implemented to set common standards throughout Europe.

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